21037515245

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{233}}^1\times {\mathrm{421}}^1\times {\mathrm{727}}^1$

素因数の和:1445

約数の個数: 32

約数和(自身を含む): 25879875840

約数和(自身を除く): 4842360595

約数列:

[1, 5, 59, 233, 295, 421, 727, 1165, 2105, 3635, 13747, 24839, 42893, 68735, 98093, 124195, 169391, 214465, 306067, 490465, 846955, 1530335, 5787487, 9994069, 18057953, 28937435, 49970345, 71313611, 90289765, 356568055, 4207503049, 21037515245]

約数ペア:

[(1, 21037515245), (5, 4207503049), (59, 356568055), (233, 90289765), (295, 71313611), (421, 49970345), (727, 28937435), (1165, 18057953), (2105, 9994069), (3635, 5787487), (13747, 1530335), (24839, 846955), (42893, 490465), (68735, 306067), (98093, 214465), (124195, 169391)]