21145800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2711}}^1$

素因数の和:2743

約数の個数: 96

約数和(自身を含む): 70620480

約数和(自身を除く): 49474680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 25, 26, 30, 39, 40, 50, 52, 60, 65, 75, 78, 100, 104, 120, 130, 150, 156, 195, 200, 260, 300, 312, 325, 390, 520, 600, 650, 780, 975, 1300, 1560, 1950, 2600, 2711, 3900, 5422, 7800, 8133, 10844, 13555, 16266, 21688, 27110, 32532, 35243, 40665, 54220, 65064, 67775, 70486, 81330, 105729, 108440, 135550, 140972, 162660, 176215, 203325, 211458, 271100, 281944, 325320, 352430, 406650, 422916, 528645, 542200, 704860, 813300, 845832, 881075, 1057290, 1409720, 1626600, 1762150, 2114580, 2643225, 3524300, 4229160, 5286450, 7048600, 10572900, 21145800]

約数ペア:

[(1, 21145800), (2, 10572900), (3, 7048600), (4, 5286450), (5, 4229160), (6, 3524300), (8, 2643225), (10, 2114580), (12, 1762150), (13, 1626600), (15, 1409720), (20, 1057290), (24, 881075), (25, 845832), (26, 813300), (30, 704860), (39, 542200), (40, 528645), (50, 422916), (52, 406650), (60, 352430), (65, 325320), (75, 281944), (78, 271100), (100, 211458), (104, 203325), (120, 176215), (130, 162660), (150, 140972), (156, 135550), (195, 108440), (200, 105729), (260, 81330), (300, 70486), (312, 67775), (325, 65064), (390, 54220), (520, 40665), (600, 35243), (650, 32532), (780, 27110), (975, 21688), (1300, 16266), (1560, 13555), (1950, 10844), (2600, 8133), (2711, 7800), (3900, 5422)]