21909976

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{811}}^1$

素因数の和:1135

約数の個数: 32

約数和(自身を含む): 45017280

約数和(自身を除く): 23107304

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 307, 614, 811, 1228, 1622, 2456, 3244, 3377, 6488, 6754, 8921, 13508, 17842, 27016, 35684, 71368, 248977, 497954, 995908, 1991816, 2738747, 5477494, 10954988, 21909976]

約数ペア:

[(1, 21909976), (2, 10954988), (4, 5477494), (8, 2738747), (11, 1991816), (22, 995908), (44, 497954), (88, 248977), (307, 71368), (614, 35684), (811, 27016), (1228, 17842), (1622, 13508), (2456, 8921), (3244, 6754), (3377, 6488)]