21241740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{241}}^1$

素因数の和:379

約数の個数: 96

約数和(自身を含む): 64886976

約数和(自身を除く): 43645236

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 113, 130, 156, 195, 226, 241, 260, 339, 390, 452, 482, 565, 678, 723, 780, 964, 1130, 1205, 1356, 1446, 1469, 1695, 2260, 2410, 2892, 2938, 3133, 3390, 3615, 4407, 4820, 5876, 6266, 6780, 7230, 7345, 8814, 9399, 12532, 14460, 14690, 15665, 17628, 18798, 22035, 27233, 29380, 31330, 37596, 44070, 46995, 54466, 62660, 81699, 88140, 93990, 108932, 136165, 163398, 187980, 272330, 326796, 354029, 408495, 544660, 708058, 816990, 1062087, 1416116, 1633980, 1770145, 2124174, 3540290, 4248348, 5310435, 7080580, 10620870, 21241740]

約数ペア:

[(1, 21241740), (2, 10620870), (3, 7080580), (4, 5310435), (5, 4248348), (6, 3540290), (10, 2124174), (12, 1770145), (13, 1633980), (15, 1416116), (20, 1062087), (26, 816990), (30, 708058), (39, 544660), (52, 408495), (60, 354029), (65, 326796), (78, 272330), (113, 187980), (130, 163398), (156, 136165), (195, 108932), (226, 93990), (241, 88140), (260, 81699), (339, 62660), (390, 54466), (452, 46995), (482, 44070), (565, 37596), (678, 31330), (723, 29380), (780, 27233), (964, 22035), (1130, 18798), (1205, 17628), (1356, 15665), (1446, 14690), (1469, 14460), (1695, 12532), (2260, 9399), (2410, 8814), (2892, 7345), (2938, 7230), (3133, 6780), (3390, 6266), (3615, 5876), (4407, 4820)]