20900712

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2647}}^1$

素因数の和:2710

約数の個数: 64

約数和(自身を含む): 61009920

約数和(自身を除く): 40109208

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 47, 56, 84, 94, 141, 168, 188, 282, 329, 376, 564, 658, 987, 1128, 1316, 1974, 2632, 2647, 3948, 5294, 7896, 7941, 10588, 15882, 18529, 21176, 31764, 37058, 55587, 63528, 74116, 111174, 124409, 148232, 222348, 248818, 373227, 444696, 497636, 746454, 870863, 995272, 1492908, 1741726, 2612589, 2985816, 3483452, 5225178, 6966904, 10450356, 20900712]

約数ペア:

[(1, 20900712), (2, 10450356), (3, 6966904), (4, 5225178), (6, 3483452), (7, 2985816), (8, 2612589), (12, 1741726), (14, 1492908), (21, 995272), (24, 870863), (28, 746454), (42, 497636), (47, 444696), (56, 373227), (84, 248818), (94, 222348), (141, 148232), (168, 124409), (188, 111174), (282, 74116), (329, 63528), (376, 55587), (564, 37058), (658, 31764), (987, 21176), (1128, 18529), (1316, 15882), (1974, 10588), (2632, 7941), (2647, 7896), (3948, 5294)]