21561807962

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{337}}^1\times {\mathrm{21313}}^1$

素因数の和:21750

約数の個数: 32

約数和(自身を含む): 34579833600

約数和(自身を除く): 13018025638

約数列:

[1, 2, 19, 38, 79, 158, 337, 674, 1501, 3002, 6403, 12806, 21313, 26623, 42626, 53246, 404947, 505837, 809894, 1011674, 1683727, 3367454, 7182481, 14364962, 31990813, 63981626, 136467139, 272934278, 567415999, 1134831998, 10780903981, 21561807962]

約数ペア:

[(1, 21561807962), (2, 10780903981), (19, 1134831998), (38, 567415999), (79, 272934278), (158, 136467139), (337, 63981626), (674, 31990813), (1501, 14364962), (3002, 7182481), (6403, 3367454), (12806, 1683727), (21313, 1011674), (26623, 809894), (42626, 505837), (53246, 404947)]