20420712

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{21817}}^1$

素因数の和:21842

約数の個数: 48

約数和(自身を含む): 59563140

約数和(自身を除く): 39142428

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 21817, 43634, 65451, 87268, 130902, 174536, 196353, 261804, 283621, 392706, 523608, 567242, 785412, 850863, 1134484, 1570824, 1701726, 2268968, 2552589, 3403452, 5105178, 6806904, 10210356, 20420712]

約数ペア:

[(1, 20420712), (2, 10210356), (3, 6806904), (4, 5105178), (6, 3403452), (8, 2552589), (9, 2268968), (12, 1701726), (13, 1570824), (18, 1134484), (24, 850863), (26, 785412), (36, 567242), (39, 523608), (52, 392706), (72, 283621), (78, 261804), (104, 196353), (117, 174536), (156, 130902), (234, 87268), (312, 65451), (468, 43634), (936, 21817)]