21053409

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1\times {\mathrm{1171}}^1$

素因数の和:1648

約数の個数: 16

約数和(自身を含む): 30321984

約数和(自身を除く): 9268575

約数列:

[1, 3, 13, 39, 461, 1171, 1383, 3513, 5993, 15223, 17979, 45669, 539831, 1619493, 7017803, 21053409]

約数ペア:

[(1, 21053409), (3, 7017803), (13, 1619493), (39, 539831), (461, 45669), (1171, 17979), (1383, 15223), (3513, 5993)]