21580767

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2753}}^1$

素因数の和:2839

約数の個数: 24

約数和(自身を含む): 34083504

約数和(自身を除く): 12502737

約数列:

[1, 3, 9, 13, 39, 67, 117, 201, 603, 871, 2613, 2753, 7839, 8259, 24777, 35789, 107367, 184451, 322101, 553353, 1660059, 2397863, 7193589, 21580767]

約数ペア:

[(1, 21580767), (3, 7193589), (9, 2397863), (13, 1660059), (39, 553353), (67, 322101), (117, 184451), (201, 107367), (603, 35789), (871, 24777), (2613, 8259), (2753, 7839)]