20975530

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{953}}^1$

素因数の和:1062

約数の個数: 32

約数和(自身を含む): 39564288

約数和(自身を除く): 18588758

約数列:

[1, 2, 5, 10, 31, 62, 71, 142, 155, 310, 355, 710, 953, 1906, 2201, 4402, 4765, 9530, 11005, 22010, 29543, 59086, 67663, 135326, 147715, 295430, 338315, 676630, 2097553, 4195106, 10487765, 20975530]

約数ペア:

[(1, 20975530), (2, 10487765), (5, 4195106), (10, 2097553), (31, 676630), (62, 338315), (71, 295430), (142, 147715), (155, 135326), (310, 67663), (355, 59086), (710, 29543), (953, 22010), (1906, 11005), (2201, 9530), (4402, 4765)]