31290358

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{239}}^1\times {\mathrm{541}}^1$

素因数の和:804

約数の個数: 24

約数和(自身を含む): 51901920

約数和(自身を除く): 20611562

約数列:

[1, 2, 11, 22, 121, 239, 242, 478, 541, 1082, 2629, 5258, 5951, 11902, 28919, 57838, 65461, 129299, 130922, 258598, 1422289, 2844578, 15645179, 31290358]

約数ペア:

[(1, 31290358), (2, 15645179), (11, 2844578), (22, 1422289), (121, 258598), (239, 130922), (242, 129299), (478, 65461), (541, 57838), (1082, 28919), (2629, 11902), (5258, 5951)]