21870542

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{227}}^1\times {\mathrm{719}}^1$

素因数の和:1015

約数の個数: 16

約数和(自身を含む): 33488640

約数和(自身を除く): 11618098

約数列:

[1, 2, 67, 134, 227, 454, 719, 1438, 15209, 30418, 48173, 96346, 163213, 326426, 10935271, 21870542]

約数ペア:

[(1, 21870542), (2, 10935271), (67, 326426), (134, 163213), (227, 96346), (454, 48173), (719, 30418), (1438, 15209)]