20213204

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{443}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 41622336

約数和(自身を除く): 21409132

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 61, 68, 122, 187, 244, 374, 443, 671, 748, 886, 1037, 1342, 1772, 2074, 2684, 4148, 4873, 7531, 9746, 11407, 15062, 19492, 22814, 27023, 30124, 45628, 54046, 82841, 108092, 165682, 297253, 331364, 459391, 594506, 918782, 1189012, 1837564, 5053301, 10106602, 20213204]

約数ペア:

[(1, 20213204), (2, 10106602), (4, 5053301), (11, 1837564), (17, 1189012), (22, 918782), (34, 594506), (44, 459391), (61, 331364), (68, 297253), (122, 165682), (187, 108092), (244, 82841), (374, 54046), (443, 45628), (671, 30124), (748, 27023), (886, 22814), (1037, 19492), (1342, 15062), (1772, 11407), (2074, 9746), (2684, 7531), (4148, 4873)]