31971485

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2423}}^1$

素因数の和:2477

約数の個数: 32

約数和(自身を含む): 48867840

約数和(自身を除く): 16896355

約数列:

[1, 5, 7, 13, 29, 35, 65, 91, 145, 203, 377, 455, 1015, 1885, 2423, 2639, 12115, 13195, 16961, 31499, 70267, 84805, 157495, 220493, 351335, 491869, 913471, 1102465, 2459345, 4567355, 6394297, 31971485]

約数ペア:

[(1, 31971485), (5, 6394297), (7, 4567355), (13, 2459345), (29, 1102465), (35, 913471), (65, 491869), (91, 351335), (145, 220493), (203, 157495), (377, 84805), (455, 70267), (1015, 31499), (1885, 16961), (2423, 13195), (2639, 12115)]