21248374

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:388

約数の個数: 32

約数和(自身を含む): 37497600

約数和(自身を除く): 16249226

約数列:

[1, 2, 7, 14, 61, 122, 139, 179, 278, 358, 427, 854, 973, 1253, 1946, 2506, 8479, 10919, 16958, 21838, 24881, 49762, 59353, 76433, 118706, 152866, 174167, 348334, 1517741, 3035482, 10624187, 21248374]

約数ペア:

[(1, 21248374), (2, 10624187), (7, 3035482), (14, 1517741), (61, 348334), (122, 174167), (139, 152866), (179, 118706), (278, 76433), (358, 59353), (427, 49762), (854, 24881), (973, 21838), (1253, 16958), (1946, 10919), (2506, 8479)]