21009326

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{599}}^1$

素因数の和:704

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 15278674

約数列:

[1, 2, 13, 19, 26, 38, 71, 142, 247, 494, 599, 923, 1198, 1349, 1846, 2698, 7787, 11381, 15574, 17537, 22762, 35074, 42529, 85058, 147953, 295906, 552877, 808051, 1105754, 1616102, 10504663, 21009326]

約数ペア:

[(1, 21009326), (2, 10504663), (13, 1616102), (19, 1105754), (26, 808051), (38, 552877), (71, 295906), (142, 147953), (247, 85058), (494, 42529), (599, 35074), (923, 22762), (1198, 17537), (1349, 15574), (1846, 11381), (2698, 7787)]