21325980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1439}}^1$

素因数の和:1483

約数の個数: 96

約数和(自身を含む): 67737600

約数和(自身を除く): 46411620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 26, 30, 38, 39, 52, 57, 60, 65, 76, 78, 95, 114, 130, 156, 190, 195, 228, 247, 260, 285, 380, 390, 494, 570, 741, 780, 988, 1140, 1235, 1439, 1482, 2470, 2878, 2964, 3705, 4317, 4940, 5756, 7195, 7410, 8634, 14390, 14820, 17268, 18707, 21585, 27341, 28780, 37414, 43170, 54682, 56121, 74828, 82023, 86340, 93535, 109364, 112242, 136705, 164046, 187070, 224484, 273410, 280605, 328092, 355433, 374140, 410115, 546820, 561210, 710866, 820230, 1066299, 1122420, 1421732, 1640460, 1777165, 2132598, 3554330, 4265196, 5331495, 7108660, 10662990, 21325980]

約数ペア:

[(1, 21325980), (2, 10662990), (3, 7108660), (4, 5331495), (5, 4265196), (6, 3554330), (10, 2132598), (12, 1777165), (13, 1640460), (15, 1421732), (19, 1122420), (20, 1066299), (26, 820230), (30, 710866), (38, 561210), (39, 546820), (52, 410115), (57, 374140), (60, 355433), (65, 328092), (76, 280605), (78, 273410), (95, 224484), (114, 187070), (130, 164046), (156, 136705), (190, 112242), (195, 109364), (228, 93535), (247, 86340), (260, 82023), (285, 74828), (380, 56121), (390, 54682), (494, 43170), (570, 37414), (741, 28780), (780, 27341), (988, 21585), (1140, 18707), (1235, 17268), (1439, 14820), (1482, 14390), (2470, 8634), (2878, 7410), (2964, 7195), (3705, 5756), (4317, 4940)]