20189545901

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{165541}}^1$

素因数の和:165705

約数の個数: 24

約数和(自身を含む): 24910760160

約数和(自身を除く): 4721214259

約数列:

[1, 7, 19, 49, 131, 133, 917, 931, 2489, 6419, 17423, 121961, 165541, 1158787, 3145279, 8111509, 21685871, 22016953, 151801097, 154118671, 412031549, 1062607679, 2884220843, 20189545901]

約数ペア:

[(1, 20189545901), (7, 2884220843), (19, 1062607679), (49, 412031549), (131, 154118671), (133, 151801097), (917, 22016953), (931, 21685871), (2489, 8111509), (6419, 3145279), (17423, 1158787), (121961, 165541)]