21062079

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{10987}}^1$

素因数の和:11067

約数の個数: 16

約数和(自身を含む): 31645440

約数和(自身を除く): 10583361

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 10987, 32961, 98883, 296649, 780077, 2340231, 7020693, 21062079]

約数ペア:

[(1, 21062079), (3, 7020693), (9, 2340231), (27, 780077), (71, 296649), (213, 98883), (639, 32961), (1917, 10987)]