21649608

素因数分解:

$2^3\times 3^2\times {\mathrm{199}}^1\times {\mathrm{1511}}^1$

素因数の和:1722

約数の個数: 48

約数和(自身を含む): 58968000

約数和(自身を除く): 37318392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 199, 398, 597, 796, 1194, 1511, 1592, 1791, 2388, 3022, 3582, 4533, 4776, 6044, 7164, 9066, 12088, 13599, 14328, 18132, 27198, 36264, 54396, 108792, 300689, 601378, 902067, 1202756, 1804134, 2405512, 2706201, 3608268, 5412402, 7216536, 10824804, 21649608]

約数ペア:

[(1, 21649608), (2, 10824804), (3, 7216536), (4, 5412402), (6, 3608268), (8, 2706201), (9, 2405512), (12, 1804134), (18, 1202756), (24, 902067), (36, 601378), (72, 300689), (199, 108792), (398, 54396), (597, 36264), (796, 27198), (1194, 18132), (1511, 14328), (1592, 13599), (1791, 12088), (2388, 9066), (3022, 7164), (3582, 6044), (4533, 4776)]