21052170

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{757}}^1$

素因数の和:876

約数の個数: 64

約数和(自身を含む): 56759040

約数和(自身を除く): 35706870

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 103, 135, 206, 270, 309, 515, 618, 757, 927, 1030, 1514, 1545, 1854, 2271, 2781, 3090, 3785, 4542, 4635, 5562, 6813, 7570, 9270, 11355, 13626, 13905, 20439, 22710, 27810, 34065, 40878, 68130, 77971, 102195, 155942, 204390, 233913, 389855, 467826, 701739, 779710, 1169565, 1403478, 2105217, 2339130, 3508695, 4210434, 7017390, 10526085, 21052170]

約数ペア:

[(1, 21052170), (2, 10526085), (3, 7017390), (5, 4210434), (6, 3508695), (9, 2339130), (10, 2105217), (15, 1403478), (18, 1169565), (27, 779710), (30, 701739), (45, 467826), (54, 389855), (90, 233913), (103, 204390), (135, 155942), (206, 102195), (270, 77971), (309, 68130), (515, 40878), (618, 34065), (757, 27810), (927, 22710), (1030, 20439), (1514, 13905), (1545, 13626), (1854, 11355), (2271, 9270), (2781, 7570), (3090, 6813), (3785, 5562), (4542, 4635)]