31387473

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{401}}^1$

素因数の和:646

約数の個数: 32

約数和(自身を含む): 50426880

約数和(自身を除く): 19039407

約数列:

[1, 3, 9, 13, 27, 39, 117, 223, 351, 401, 669, 1203, 2007, 2899, 3609, 5213, 6021, 8697, 10827, 15639, 26091, 46917, 78273, 89423, 140751, 268269, 804807, 1162499, 2414421, 3487497, 10462491, 31387473]

約数ペア:

[(1, 31387473), (3, 10462491), (9, 3487497), (13, 2414421), (27, 1162499), (39, 804807), (117, 268269), (223, 140751), (351, 89423), (401, 78273), (669, 46917), (1203, 26091), (2007, 15639), (2899, 10827), (3609, 8697), (5213, 6021)]