20984854

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{823}}^1$

素因数の和:916

約数の個数: 32

約数和(自身を含む): 36783360

約数和(自身を除く): 15798506

約数列:

[1, 2, 11, 19, 22, 38, 61, 122, 209, 418, 671, 823, 1159, 1342, 1646, 2318, 9053, 12749, 15637, 18106, 25498, 31274, 50203, 100406, 172007, 344014, 552233, 953857, 1104466, 1907714, 10492427, 20984854]

約数ペア:

[(1, 20984854), (2, 10492427), (11, 1907714), (19, 1104466), (22, 953857), (38, 552233), (61, 344014), (122, 172007), (209, 100406), (418, 50203), (671, 31274), (823, 25498), (1159, 18106), (1342, 15637), (1646, 12749), (2318, 9053)]