21103880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1$

素因数の和:183

約数の個数: 128

約数和(自身を含む): 59097600

約数和(自身を除く): 37993720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 29, 35, 40, 46, 56, 58, 70, 92, 113, 115, 116, 140, 145, 161, 184, 203, 226, 230, 232, 280, 290, 322, 406, 452, 460, 565, 580, 644, 667, 791, 805, 812, 904, 920, 1015, 1130, 1160, 1288, 1334, 1582, 1610, 1624, 2030, 2260, 2599, 2668, 3164, 3220, 3277, 3335, 3955, 4060, 4520, 4669, 5198, 5336, 6328, 6440, 6554, 6670, 7910, 8120, 9338, 10396, 12995, 13108, 13340, 15820, 16385, 18193, 18676, 20792, 22939, 23345, 25990, 26216, 26680, 31640, 32770, 36386, 37352, 45878, 46690, 51980, 65540, 72772, 75371, 90965, 91756, 93380, 103960, 114695, 131080, 145544, 150742, 181930, 183512, 186760, 229390, 301484, 363860, 376855, 458780, 527597, 602968, 727720, 753710, 917560, 1055194, 1507420, 2110388, 2637985, 3014840, 4220776, 5275970, 10551940, 21103880]

約数ペア:

[(1, 21103880), (2, 10551940), (4, 5275970), (5, 4220776), (7, 3014840), (8, 2637985), (10, 2110388), (14, 1507420), (20, 1055194), (23, 917560), (28, 753710), (29, 727720), (35, 602968), (40, 527597), (46, 458780), (56, 376855), (58, 363860), (70, 301484), (92, 229390), (113, 186760), (115, 183512), (116, 181930), (140, 150742), (145, 145544), (161, 131080), (184, 114695), (203, 103960), (226, 93380), (230, 91756), (232, 90965), (280, 75371), (290, 72772), (322, 65540), (406, 51980), (452, 46690), (460, 45878), (565, 37352), (580, 36386), (644, 32770), (667, 31640), (791, 26680), (805, 26216), (812, 25990), (904, 23345), (920, 22939), (1015, 20792), (1130, 18676), (1160, 18193), (1288, 16385), (1334, 15820), (1582, 13340), (1610, 13108), (1624, 12995), (2030, 10396), (2260, 9338), (2599, 8120), (2668, 7910), (3164, 6670), (3220, 6554), (3277, 6440), (3335, 6328), (3955, 5336), (4060, 5198), (4520, 4669)]