71399251

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 92252160

約数和(自身を除く): 20852909

約数列:

[1, 7, 11, 47, 77, 109, 181, 329, 517, 763, 1199, 1267, 1991, 3619, 5123, 8393, 8507, 13937, 19729, 35861, 56353, 59549, 93577, 138103, 217019, 394471, 655039, 927263, 1519133, 6490841, 10199893, 71399251]

約数ペア:

[(1, 71399251), (7, 10199893), (11, 6490841), (47, 1519133), (77, 927263), (109, 655039), (181, 394471), (329, 217019), (517, 138103), (763, 93577), (1199, 59549), (1267, 56353), (1991, 35861), (3619, 19729), (5123, 13937), (8393, 8507)]