21486699

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2741}}^1$

素因数の和:2827

約数の個数: 24

約数和(自身を含む): 33934992

約数和(自身を除く): 12448293

約数列:

[1, 3, 9, 13, 39, 67, 117, 201, 603, 871, 2613, 2741, 7839, 8223, 24669, 35633, 106899, 183647, 320697, 550941, 1652823, 2387411, 7162233, 21486699]

約数ペア:

[(1, 21486699), (3, 7162233), (9, 2387411), (13, 1652823), (39, 550941), (67, 320697), (117, 183647), (201, 106899), (603, 35633), (871, 24669), (2613, 8223), (2741, 7839)]