20121493436

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{6440939}}^1$

素因数の和:6441025

約数の個数: 24

約数和(自身を含む): 38954805120

約数和(自身を除く): 18833311684

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 6440939, 12881878, 25763756, 70850329, 141700658, 283401316, 457306669, 914613338, 1829226676, 5030373359, 10060746718, 20121493436]

約数ペア:

[(1, 20121493436), (2, 10060746718), (4, 5030373359), (11, 1829226676), (22, 914613338), (44, 457306669), (71, 283401316), (142, 141700658), (284, 70850329), (781, 25763756), (1562, 12881878), (3124, 6440939)]