21533880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1291}}^1$

素因数の和:1444

約数の個数: 64

約数和(自身を含む): 65116800

約数和(自身を除く): 43582920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 139, 278, 417, 556, 695, 834, 1112, 1291, 1390, 1668, 2085, 2582, 2780, 3336, 3873, 4170, 5164, 5560, 6455, 7746, 8340, 10328, 12910, 15492, 16680, 19365, 25820, 30984, 38730, 51640, 77460, 154920, 179449, 358898, 538347, 717796, 897245, 1076694, 1435592, 1794490, 2153388, 2691735, 3588980, 4306776, 5383470, 7177960, 10766940, 21533880]

約数ペア:

[(1, 21533880), (2, 10766940), (3, 7177960), (4, 5383470), (5, 4306776), (6, 3588980), (8, 2691735), (10, 2153388), (12, 1794490), (15, 1435592), (20, 1076694), (24, 897245), (30, 717796), (40, 538347), (60, 358898), (120, 179449), (139, 154920), (278, 77460), (417, 51640), (556, 38730), (695, 30984), (834, 25820), (1112, 19365), (1291, 16680), (1390, 15492), (1668, 12910), (2085, 10328), (2582, 8340), (2780, 7746), (3336, 6455), (3873, 5560), (4170, 5164)]