19747408

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{20233}}^1$

素因数の和:20302

約数の個数: 20

約数和(自身を含む): 38889748

約数和(自身を除く): 19142340

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 20233, 40466, 80932, 161864, 323728, 1234213, 2468426, 4936852, 9873704, 19747408]

約数ペア:

[(1, 19747408), (2, 9873704), (4, 4936852), (8, 2468426), (16, 1234213), (61, 323728), (122, 161864), (244, 80932), (488, 40466), (976, 20233)]