20991870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10141}}^1$

素因数の和:10177

約数の個数: 48

約数和(自身を含む): 56957472

約数和(自身を除く): 35965602

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 345, 414, 690, 1035, 2070, 10141, 20282, 30423, 50705, 60846, 91269, 101410, 152115, 182538, 233243, 304230, 456345, 466486, 699729, 912690, 1166215, 1399458, 2099187, 2332430, 3498645, 4198374, 6997290, 10495935, 20991870]

約数ペア:

[(1, 20991870), (2, 10495935), (3, 6997290), (5, 4198374), (6, 3498645), (9, 2332430), (10, 2099187), (15, 1399458), (18, 1166215), (23, 912690), (30, 699729), (45, 466486), (46, 456345), (69, 304230), (90, 233243), (115, 182538), (138, 152115), (207, 101410), (230, 91269), (345, 60846), (414, 50705), (690, 30423), (1035, 20282), (2070, 10141)]