40907321

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{853}}^1$

素因数の和:921

約数の個数: 32

約数和(自身を含む): 55093248

約数和(自身を除く): 14185927

約数列:

[1, 7, 13, 17, 31, 91, 119, 217, 221, 403, 527, 853, 1547, 2821, 3689, 5971, 6851, 11089, 14501, 26443, 47957, 77623, 101507, 185101, 188513, 343759, 449531, 1319591, 2406313, 3146717, 5843903, 40907321]

約数ペア:

[(1, 40907321), (7, 5843903), (13, 3146717), (17, 2406313), (31, 1319591), (91, 449531), (119, 343759), (217, 188513), (221, 185101), (403, 101507), (527, 77623), (853, 47957), (1547, 26443), (2821, 14501), (3689, 11089), (5971, 6851)]