31505738

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{1289}}^1$

素因数の和:1414

約数の個数: 24

約数和(自身を含む): 52500420

約数和(自身を除く): 20994682

約数列:

[1, 2, 11, 22, 101, 121, 202, 242, 1111, 1289, 2222, 2578, 12221, 14179, 24442, 28358, 130189, 155969, 260378, 311938, 1432079, 2864158, 15752869, 31505738]

約数ペア:

[(1, 31505738), (2, 15752869), (11, 2864158), (22, 1432079), (101, 311938), (121, 260378), (202, 155969), (242, 130189), (1111, 28358), (1289, 24442), (2222, 14179), (2578, 12221)]