21167222878

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1\times {\mathrm{562091}}^1$

素因数の和:563103

約数の個数: 16

約数和(自身を含む): 33455715840

約数和(自身を除く): 12288492962

約数列:

[1, 2, 19, 38, 991, 1982, 18829, 37658, 562091, 1124182, 10679729, 21359458, 557032181, 1114064362, 10583611439, 21167222878]

約数ペア:

[(1, 21167222878), (2, 10583611439), (19, 1114064362), (38, 557032181), (991, 21359458), (1982, 10679729), (18829, 1124182), (37658, 562091)]