19702358

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{821}}^1$

素因数の和:920

約数の個数: 24

約数和(自身を含む): 32492016

約数和(自身を除く): 12789658

約数列:

[1, 2, 13, 26, 71, 142, 169, 338, 821, 923, 1642, 1846, 10673, 11999, 21346, 23998, 58291, 116582, 138749, 277498, 757783, 1515566, 9851179, 19702358]

約数ペア:

[(1, 19702358), (2, 9851179), (13, 1515566), (26, 757783), (71, 277498), (142, 138749), (169, 116582), (338, 58291), (821, 23998), (923, 21346), (1642, 11999), (1846, 10673)]