21993660

素因数分解:

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

素因数の和:285

約数の個数: 144

約数和(自身を含む): 74400480

約数和(自身を除く): 52406820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 90, 108, 117, 130, 135, 156, 169, 180, 195, 234, 241, 260, 270, 338, 351, 390, 468, 482, 507, 540, 585, 676, 702, 723, 780, 845, 964, 1014, 1170, 1205, 1404, 1446, 1521, 1690, 1755, 2028, 2169, 2340, 2410, 2535, 2892, 3042, 3133, 3380, 3510, 3615, 4338, 4563, 4820, 5070, 6084, 6266, 6507, 7020, 7230, 7605, 8676, 9126, 9399, 10140, 10845, 12532, 13014, 14460, 15210, 15665, 18252, 18798, 21690, 22815, 26028, 28197, 30420, 31330, 32535, 37596, 40729, 43380, 45630, 46995, 56394, 62660, 65070, 81458, 84591, 91260, 93990, 112788, 122187, 130140, 140985, 162916, 169182, 187980, 203645, 244374, 281970, 338364, 366561, 407290, 422955, 488748, 563940, 610935, 733122, 814580, 845910, 1099683, 1221870, 1466244, 1691820, 1832805, 2199366, 2443740, 3665610, 4398732, 5498415, 7331220, 10996830, 21993660]

約数ペア:

[(1, 21993660), (2, 10996830), (3, 7331220), (4, 5498415), (5, 4398732), (6, 3665610), (9, 2443740), (10, 2199366), (12, 1832805), (13, 1691820), (15, 1466244), (18, 1221870), (20, 1099683), (26, 845910), (27, 814580), (30, 733122), (36, 610935), (39, 563940), (45, 488748), (52, 422955), (54, 407290), (60, 366561), (65, 338364), (78, 281970), (90, 244374), (108, 203645), (117, 187980), (130, 169182), (135, 162916), (156, 140985), (169, 130140), (180, 122187), (195, 112788), (234, 93990), (241, 91260), (260, 84591), (270, 81458), (338, 65070), (351, 62660), (390, 56394), (468, 46995), (482, 45630), (507, 43380), (540, 40729), (585, 37596), (676, 32535), (702, 31330), (723, 30420), (780, 28197), (845, 26028), (964, 22815), (1014, 21690), (1170, 18798), (1205, 18252), (1404, 15665), (1446, 15210), (1521, 14460), (1690, 13014), (1755, 12532), (2028, 10845), (2169, 10140), (2340, 9399), (2410, 9126), (2535, 8676), (2892, 7605), (3042, 7230), (3133, 7020), (3380, 6507), (3510, 6266), (3615, 6084), (4338, 5070), (4563, 4820)]