20213203724

素因数分解:

$2^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{409}}^1\times {\mathrm{16193}}^1$

素因数の和:16722

約数の個数: 48

約数和(自身を含む): 40899566400

約数和(自身を除く): 20686362676

約数列:

[1, 2, 4, 7, 14, 28, 109, 218, 409, 436, 763, 818, 1526, 1636, 2863, 3052, 5726, 11452, 16193, 32386, 44581, 64772, 89162, 113351, 178324, 226702, 312067, 453404, 624134, 1248268, 1765037, 3530074, 6622937, 7060148, 12355259, 13245874, 24710518, 26491748, 46360559, 49421036, 92721118, 185442236, 721900133, 1443800266, 2887600532, 5053300931, 10106601862, 20213203724]

約数ペア:

[(1, 20213203724), (2, 10106601862), (4, 5053300931), (7, 2887600532), (14, 1443800266), (28, 721900133), (109, 185442236), (218, 92721118), (409, 49421036), (436, 46360559), (763, 26491748), (818, 24710518), (1526, 13245874), (1636, 12355259), (2863, 7060148), (3052, 6622937), (5726, 3530074), (11452, 1765037), (16193, 1248268), (32386, 624134), (44581, 453404), (64772, 312067), (89162, 226702), (113351, 178324)]