21399689220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{301489}}^1$

素因数の和:301534

約数の個数: 144

約数和(自身を含む): 74152068480

約数和(自身を除く): 52752379260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 169, 182, 195, 210, 260, 273, 338, 364, 390, 420, 455, 507, 546, 676, 780, 845, 910, 1014, 1092, 1183, 1365, 1690, 1820, 2028, 2366, 2535, 2730, 3380, 3549, 4732, 5070, 5460, 5915, 7098, 10140, 11830, 14196, 17745, 23660, 35490, 70980, 301489, 602978, 904467, 1205956, 1507445, 1808934, 2110423, 3014890, 3617868, 3919357, 4220846, 4522335, 6029780, 6331269, 7838714, 8441692, 9044670, 10552115, 11758071, 12662538, 15677428, 18089340, 19596785, 21104230, 23516142, 25325076, 27435499, 31656345, 39193570, 42208460, 47032284, 50951641, 54870998, 58790355, 63312690, 78387140, 82306497, 101903282, 109741996, 117580710, 126625380, 137177495, 152854923, 164612994, 203806564, 235161420, 254758205, 274354990, 305709846, 329225988, 356661487, 411532485, 509516410, 548709980, 611419692, 713322974, 764274615, 823064970, 1019032820, 1069984461, 1426645948, 1528549230, 1646129940, 1783307435, 2139968922, 3057098460, 3566614870, 4279937844, 5349922305, 7133229740, 10699844610, 21399689220]

約数ペア:

[(1, 21399689220), (2, 10699844610), (3, 7133229740), (4, 5349922305), (5, 4279937844), (6, 3566614870), (7, 3057098460), (10, 2139968922), (12, 1783307435), (13, 1646129940), (14, 1528549230), (15, 1426645948), (20, 1069984461), (21, 1019032820), (26, 823064970), (28, 764274615), (30, 713322974), (35, 611419692), (39, 548709980), (42, 509516410), (52, 411532485), (60, 356661487), (65, 329225988), (70, 305709846), (78, 274354990), (84, 254758205), (91, 235161420), (105, 203806564), (130, 164612994), (140, 152854923), (156, 137177495), (169, 126625380), (182, 117580710), (195, 109741996), (210, 101903282), (260, 82306497), (273, 78387140), (338, 63312690), (364, 58790355), (390, 54870998), (420, 50951641), (455, 47032284), (507, 42208460), (546, 39193570), (676, 31656345), (780, 27435499), (845, 25325076), (910, 23516142), (1014, 21104230), (1092, 19596785), (1183, 18089340), (1365, 15677428), (1690, 12662538), (1820, 11758071), (2028, 10552115), (2366, 9044670), (2535, 8441692), (2730, 7838714), (3380, 6331269), (3549, 6029780), (4732, 4522335), (5070, 4220846), (5460, 3919357), (5915, 3617868), (7098, 3014890), (10140, 2110423), (11830, 1808934), (14196, 1507445), (17745, 1205956), (23660, 904467), (35490, 602978), (70980, 301489)]