20671519

素因数分解:

${\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:231

約数の個数: 24

約数和(自身を含む): 24227280

約数和(自身を除く): 3555761

約数列:

[1, 11, 29, 43, 121, 137, 319, 473, 1247, 1507, 3509, 3973, 5203, 5891, 13717, 16577, 43703, 64801, 150887, 170839, 480733, 712811, 1879229, 20671519]

約数ペア:

[(1, 20671519), (11, 1879229), (29, 712811), (43, 480733), (121, 170839), (137, 150887), (319, 64801), (473, 43703), (1247, 16577), (1507, 13717), (3509, 5891), (3973, 5203)]