647522421

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2371877}}^1$

素因数の和:2371900

約数の個数: 16

約数和(自身を含む): 1062601344

約数和(自身を除く): 415078923

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 2371877, 7115631, 16603139, 30834401, 49809417, 92503203, 215840807, 647522421]

約数ペア:

[(1, 647522421), (3, 215840807), (7, 92503203), (13, 49809417), (21, 30834401), (39, 16603139), (91, 7115631), (273, 2371877)]