18187351

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 24066560

約数和(自身を除く): 5879209

約数列:

[1, 7, 13, 19, 67, 91, 133, 157, 247, 469, 871, 1099, 1273, 1729, 2041, 2983, 6097, 8911, 10519, 14287, 16549, 20881, 38779, 73633, 115843, 136747, 199861, 271453, 957229, 1399027, 2598193, 18187351]

約数ペア:

[(1, 18187351), (7, 2598193), (13, 1399027), (19, 957229), (67, 271453), (91, 199861), (133, 136747), (157, 115843), (247, 73633), (469, 38779), (871, 20881), (1099, 16549), (1273, 14287), (1729, 10519), (2041, 8911), (2983, 6097)]