20157914

素因数分解:

$2^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{3881}}^1$

素因数の和:3950

約数の個数: 24

約数和(自身を含む): 35846388

約数和(自身を除く): 15688474

約数列:

[1, 2, 7, 14, 49, 53, 98, 106, 371, 742, 2597, 3881, 5194, 7762, 27167, 54334, 190169, 205693, 380338, 411386, 1439851, 2879702, 10078957, 20157914]

約数ペア:

[(1, 20157914), (2, 10078957), (7, 2879702), (14, 1439851), (49, 411386), (53, 380338), (98, 205693), (106, 190169), (371, 54334), (742, 27167), (2597, 7762), (3881, 5194)]