1639791387

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{177409}}^1$

素因数の和:177507

約数の個数: 24

約数和(自身を含む): 2583089600

約数和(自身を除く): 943298213

約数列:

[1, 3, 9, 13, 39, 79, 117, 237, 711, 1027, 3081, 9243, 177409, 532227, 1596681, 2306317, 6918951, 14015311, 20756853, 42045933, 126137799, 182199043, 546597129, 1639791387]

約数ペア:

[(1, 1639791387), (3, 546597129), (9, 182199043), (13, 126137799), (39, 42045933), (79, 20756853), (117, 14015311), (237, 6918951), (711, 2306317), (1027, 1596681), (3081, 532227), (9243, 177409)]