138931401

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{5197}}^1$

素因数の和:5293

約数の個数: 32

約数和(自身を含む): 226216960

約数和(自身を除く): 87285559

約数列:

[1, 3, 7, 19, 21, 57, 67, 133, 201, 399, 469, 1273, 1407, 3819, 5197, 8911, 15591, 26733, 36379, 98743, 109137, 296229, 348199, 691201, 1044597, 2073603, 2437393, 6615781, 7312179, 19847343, 46310467, 138931401]

約数ペア:

[(1, 138931401), (3, 46310467), (7, 19847343), (19, 7312179), (21, 6615781), (57, 2437393), (67, 2073603), (133, 1044597), (201, 691201), (399, 348199), (469, 296229), (1273, 109137), (1407, 98743), (3819, 36379), (5197, 26733), (8911, 15591)]