21210658

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{587}}^1$

素因数の和:714

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 16891742

約数列:

[1, 2, 7, 14, 29, 58, 89, 178, 203, 406, 587, 623, 1174, 1246, 2581, 4109, 5162, 8218, 17023, 18067, 34046, 36134, 52243, 104486, 119161, 238322, 365701, 731402, 1515047, 3030094, 10605329, 21210658]

約数ペア:

[(1, 21210658), (2, 10605329), (7, 3030094), (14, 1515047), (29, 731402), (58, 365701), (89, 238322), (178, 119161), (203, 104486), (406, 52243), (587, 36134), (623, 34046), (1174, 18067), (1246, 17023), (2581, 8218), (4109, 5162)]