18639953

素因数分解:

${\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:388

約数の個数: 16

約数和(自身を含む): 20154960

約数和(自身を除く): 1515007

約数列:

[1, 29, 41, 61, 257, 1189, 1769, 2501, 7453, 10537, 15677, 72529, 305573, 454633, 642757, 18639953]

約数ペア:

[(1, 18639953), (29, 642757), (41, 454633), (61, 305573), (257, 72529), (1189, 15677), (1769, 10537), (2501, 7453)]