389156919

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{179}}^1\times {\mathrm{241}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 546416640

約数和(自身を除く): 157259721

約数列:

[1, 3, 31, 93, 97, 179, 241, 291, 537, 723, 3007, 5549, 7471, 9021, 16647, 17363, 22413, 23377, 43139, 52089, 70131, 129417, 538253, 724687, 1337309, 1614759, 2174061, 4011927, 4184483, 12553449, 129718973, 389156919]

約数ペア:

[(1, 389156919), (3, 129718973), (31, 12553449), (93, 4184483), (97, 4011927), (179, 2174061), (241, 1614759), (291, 1337309), (537, 724687), (723, 538253), (3007, 129417), (5549, 70131), (7471, 52089), (9021, 43139), (16647, 23377), (17363, 22413)]