21979560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{1213}}^1$

素因数の和:1378

約数の個数: 64

約数和(自身を含む): 66430080

約数和(自身を除く): 44450520

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, 1208, 1213, 1510, 1812, 2265, 2426, 3020, 3624, 3639, 4530, 4852, 6040, 6065, 7278, 9060, 9704, 12130, 14556, 18120, 18195, 24260, 29112, 36390, 48520, 72780, 145560, 183163, 366326, 549489, 732652, 915815, 1098978, 1465304, 1831630, 2197956, 2747445, 3663260, 4395912, 5494890, 7326520, 10989780, 21979560]

約数ペア:

[(1, 21979560), (2, 10989780), (3, 7326520), (4, 5494890), (5, 4395912), (6, 3663260), (8, 2747445), (10, 2197956), (12, 1831630), (15, 1465304), (20, 1098978), (24, 915815), (30, 732652), (40, 549489), (60, 366326), (120, 183163), (151, 145560), (302, 72780), (453, 48520), (604, 36390), (755, 29112), (906, 24260), (1208, 18195), (1213, 18120), (1510, 14556), (1812, 12130), (2265, 9704), (2426, 9060), (3020, 7278), (3624, 6065), (3639, 6040), (4530, 4852)]