31838157

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1487}}^1$

素因数の和:1570

約数の個数: 32

約数和(自身を含む): 51663360

約数和(自身を除く): 19825203

約数列:

[1, 3, 9, 13, 27, 39, 61, 117, 183, 351, 549, 793, 1487, 1647, 2379, 4461, 7137, 13383, 19331, 21411, 40149, 57993, 90707, 173979, 272121, 521937, 816363, 1179191, 2449089, 3537573, 10612719, 31838157]

約数ペア:

[(1, 31838157), (3, 10612719), (9, 3537573), (13, 2449089), (27, 1179191), (39, 816363), (61, 521937), (117, 272121), (183, 173979), (351, 90707), (549, 57993), (793, 40149), (1487, 21411), (1647, 19331), (2379, 13383), (4461, 7137)]