21106870

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{563}}^1$

素因数の和:756

約数の個数: 32

約数和(自身を含む): 39958272

約数和(自身を除く): 18851402

約数列:

[1, 2, 5, 10, 23, 46, 115, 163, 230, 326, 563, 815, 1126, 1630, 2815, 3749, 5630, 7498, 12949, 18745, 25898, 37490, 64745, 91769, 129490, 183538, 458845, 917690, 2110687, 4221374, 10553435, 21106870]

約数ペア:

[(1, 21106870), (2, 10553435), (5, 4221374), (10, 2110687), (23, 917690), (46, 458845), (115, 183538), (163, 129490), (230, 91769), (326, 64745), (563, 37490), (815, 25898), (1126, 18745), (1630, 12949), (2815, 7498), (3749, 5630)]