21845866

素因数分解:

$2^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{5437}}^1$

素因数の和:5494

約数の個数: 24

約数和(自身を含む): 39055716

約数和(自身を除く): 17209850

約数列:

[1, 2, 7, 14, 41, 49, 82, 98, 287, 574, 2009, 4018, 5437, 10874, 38059, 76118, 222917, 266413, 445834, 532826, 1560419, 3120838, 10922933, 21845866]

約数ペア:

[(1, 21845866), (2, 10922933), (7, 3120838), (14, 1560419), (41, 532826), (49, 445834), (82, 266413), (98, 222917), (287, 76118), (574, 38059), (2009, 10874), (4018, 5437)]