21943970

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{997}}^1$

素因数の和:1106

約数の個数: 32

約数和(自身を含む): 41389056

約数和(自身を除く): 19445086

約数列:

[1, 2, 5, 10, 31, 62, 71, 142, 155, 310, 355, 710, 997, 1994, 2201, 4402, 4985, 9970, 11005, 22010, 30907, 61814, 70787, 141574, 154535, 309070, 353935, 707870, 2194397, 4388794, 10971985, 21943970]

約数ペア:

[(1, 21943970), (2, 10971985), (5, 4388794), (10, 2194397), (31, 707870), (62, 353935), (71, 309070), (142, 154535), (155, 141574), (310, 70787), (355, 61814), (710, 30907), (997, 22010), (1994, 11005), (2201, 9970), (4402, 4985)]