21356684

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{2897}}^1$

素因数の和:3017

約数の個数: 24

約数和(自身を含む): 39760560

約数和(自身を除く): 18403876

約数列:

[1, 2, 4, 19, 38, 76, 97, 194, 388, 1843, 2897, 3686, 5794, 7372, 11588, 55043, 110086, 220172, 281009, 562018, 1124036, 5339171, 10678342, 21356684]

約数ペア:

[(1, 21356684), (2, 10678342), (4, 5339171), (19, 1124036), (38, 562018), (76, 281009), (97, 220172), (194, 110086), (388, 55043), (1843, 11588), (2897, 7372), (3686, 5794)]