81215722

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{187133}}^1$

素因数の和:187173

約数の個数: 16

約数和(自身を含む): 143718912

約数和(自身を除く): 62503190

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 187133, 374266, 1309931, 2619862, 5801123, 11602246, 40607861, 81215722]

約数ペア:

[(1, 81215722), (2, 40607861), (7, 11602246), (14, 5801123), (31, 2619862), (62, 1309931), (217, 374266), (434, 187133)]