31729971

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1637}}^1$

素因数の和:1731

約数の個数: 32

約数和(自身を含む): 52835328

約数和(自身を除く): 21105357

約数列:

[1, 3, 7, 13, 21, 39, 71, 91, 213, 273, 497, 923, 1491, 1637, 2769, 4911, 6461, 11459, 19383, 21281, 34377, 63843, 116227, 148967, 348681, 446901, 813589, 1510951, 2440767, 4532853, 10576657, 31729971]

約数ペア:

[(1, 31729971), (3, 10576657), (7, 4532853), (13, 2440767), (21, 1510951), (39, 813589), (71, 446901), (91, 348681), (213, 148967), (273, 116227), (497, 63843), (923, 34377), (1491, 21281), (1637, 19383), (2769, 11459), (4911, 6461)]