20891101

素因数分解:

$7^5\times {\mathrm{11}}^1\times {\mathrm{113}}^1$

素因数の和:159

約数の個数: 24

約数和(自身を含む): 26823744

約数和(自身を除く): 5932643

約数列:

[1, 7, 11, 49, 77, 113, 343, 539, 791, 1243, 2401, 3773, 5537, 8701, 16807, 26411, 38759, 60907, 184877, 271313, 426349, 1899191, 2984443, 20891101]

約数ペア:

[(1, 20891101), (7, 2984443), (11, 1899191), (49, 426349), (77, 271313), (113, 184877), (343, 60907), (539, 38759), (791, 26411), (1243, 16807), (2401, 8701), (3773, 5537)]