18996172

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{911}}^1$

素因数の和:1329

約数の個数: 24

約数和(自身を含む): 35929152

約数和(自身を除く): 16932980

約数列:

[1, 2, 4, 13, 26, 52, 401, 802, 911, 1604, 1822, 3644, 5213, 10426, 11843, 20852, 23686, 47372, 365311, 730622, 1461244, 4749043, 9498086, 18996172]

約数ペア:

[(1, 18996172), (2, 9498086), (4, 4749043), (13, 1461244), (26, 730622), (52, 365311), (401, 47372), (802, 23686), (911, 20852), (1604, 11843), (1822, 10426), (3644, 5213)]