20108649

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{383}}^1$

素因数の和:477

約数の個数: 32

約数和(自身を含む): 30818304

約数和(自身を除く): 10709655

約数列:

[1, 3, 11, 33, 37, 43, 111, 129, 383, 407, 473, 1149, 1221, 1419, 1591, 4213, 4773, 12639, 14171, 16469, 17501, 42513, 49407, 52503, 155881, 181159, 467643, 543477, 609353, 1828059, 6702883, 20108649]

約数ペア:

[(1, 20108649), (3, 6702883), (11, 1828059), (33, 609353), (37, 543477), (43, 467643), (111, 181159), (129, 155881), (383, 52503), (407, 49407), (473, 42513), (1149, 17501), (1221, 16469), (1419, 14171), (1591, 12639), (4213, 4773)]