20897998

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{787}}^1$

素因数の和:888

約数の個数: 32

約数和(自身を含む): 36764928

約数和(自身を除く): 15866930

約数列:

[1, 2, 11, 17, 22, 34, 71, 142, 187, 374, 781, 787, 1207, 1562, 1574, 2414, 8657, 13277, 13379, 17314, 26554, 26758, 55877, 111754, 147169, 294338, 614647, 949909, 1229294, 1899818, 10448999, 20897998]

約数ペア:

[(1, 20897998), (2, 10448999), (11, 1899818), (17, 1229294), (22, 949909), (34, 614647), (71, 294338), (142, 147169), (187, 111754), (374, 55877), (781, 26758), (787, 26554), (1207, 17314), (1562, 13379), (1574, 13277), (2414, 8657)]