21000298501

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2117179}}^1$

素因数の和:2117308

約数の個数: 16

約数和(自身を含む): 26083657600

約数和(自身を除く): 5083359099

約数列:

[1, 7, 13, 91, 109, 763, 1417, 9919, 2117179, 14820253, 27523327, 192663289, 230772511, 1615407577, 3000042643, 21000298501]

約数ペア:

[(1, 21000298501), (7, 3000042643), (13, 1615407577), (91, 230772511), (109, 192663289), (763, 27523327), (1417, 14820253), (9919, 2117179)]