21605402

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6983}}^1$

素因数の和:7022

約数の個数: 32

約数和(自身を含む): 42239232

約数和(自身を除く): 20633830

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 91, 119, 182, 221, 238, 442, 1547, 3094, 6983, 13966, 48881, 90779, 97762, 118711, 181558, 237422, 635453, 830977, 1270906, 1543243, 1661954, 3086486, 10802701, 21605402]

約数ペア:

[(1, 21605402), (2, 10802701), (7, 3086486), (13, 1661954), (14, 1543243), (17, 1270906), (26, 830977), (34, 635453), (91, 237422), (119, 181558), (182, 118711), (221, 97762), (238, 90779), (442, 48881), (1547, 13966), (3094, 6983)]