21085915691312

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42511926797}}^1$

素因数の和:42511926836

約数の個数: 20

約数和(自身を含む): 42171831383616

約数和(自身を除く): 21085915692304

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42511926797, 85023853594, 170047707188, 340095414376, 680190828752, 1317869730707, 2635739461414, 5271478922828, 10542957845656, 21085915691312]

約数ペア:

[(1, 21085915691312), (2, 10542957845656), (4, 5271478922828), (8, 2635739461414), (16, 1317869730707), (31, 680190828752), (62, 340095414376), (124, 170047707188), (248, 85023853594), (496, 42511926797)]