20018684

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23063}}^1$

素因数の和:23105

約数の個数: 24

約数和(自身を含む): 41330688

約数和(自身を除く): 21312004

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 23063, 46126, 92252, 161441, 322882, 645764, 714953, 1429906, 2859812, 5004671, 10009342, 20018684]

約数ペア:

[(1, 20018684), (2, 10009342), (4, 5004671), (7, 2859812), (14, 1429906), (28, 714953), (31, 645764), (62, 322882), (124, 161441), (217, 92252), (434, 46126), (868, 23063)]