20973710

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:416

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 17733490

約数列:

[1, 2, 5, 10, 79, 139, 158, 191, 278, 382, 395, 695, 790, 955, 1390, 1910, 10981, 15089, 21962, 26549, 30178, 53098, 54905, 75445, 109810, 132745, 150890, 265490, 2097371, 4194742, 10486855, 20973710]

約数ペア:

[(1, 20973710), (2, 10486855), (5, 4194742), (10, 2097371), (79, 265490), (139, 150890), (158, 132745), (191, 109810), (278, 75445), (382, 54905), (395, 53098), (695, 30178), (790, 26549), (955, 21962), (1390, 15089), (1910, 10981)]