21096688280

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1685039}}^1$

素因数の和:1685363

約数の個数: 32

約数和(自身を含む): 47619230400

約数和(自身を除く): 26522542120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 6260, 12520, 1685039, 3370078, 6740156, 8425195, 13480312, 16850390, 33700780, 67401560, 527417207, 1054834414, 2109668828, 2637086035, 4219337656, 5274172070, 10548344140, 21096688280]

約数ペア:

[(1, 21096688280), (2, 10548344140), (4, 5274172070), (5, 4219337656), (8, 2637086035), (10, 2109668828), (20, 1054834414), (40, 527417207), (313, 67401560), (626, 33700780), (1252, 16850390), (1565, 13480312), (2504, 8425195), (3130, 6740156), (6260, 3370078), (12520, 1685039)]