21508440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{1187}}^1$

素因数の和:1352

約数の個数: 64

約数和(自身を含む): 65007360

約数和(自身を除く): 43498920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 151, 302, 453, 604, 755, 906, 1187, 1208, 1510, 1812, 2265, 2374, 3020, 3561, 3624, 4530, 4748, 5935, 6040, 7122, 9060, 9496, 11870, 14244, 17805, 18120, 23740, 28488, 35610, 47480, 71220, 142440, 179237, 358474, 537711, 716948, 896185, 1075422, 1433896, 1792370, 2150844, 2688555, 3584740, 4301688, 5377110, 7169480, 10754220, 21508440]

約数ペア:

[(1, 21508440), (2, 10754220), (3, 7169480), (4, 5377110), (5, 4301688), (6, 3584740), (8, 2688555), (10, 2150844), (12, 1792370), (15, 1433896), (20, 1075422), (24, 896185), (30, 716948), (40, 537711), (60, 358474), (120, 179237), (151, 142440), (302, 71220), (453, 47480), (604, 35610), (755, 28488), (906, 23740), (1187, 18120), (1208, 17805), (1510, 14244), (1812, 11870), (2265, 9496), (2374, 9060), (3020, 7122), (3561, 6040), (3624, 5935), (4530, 4748)]