279260891

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1\times {\mathrm{281}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 352224768

約数和(自身を除く): 72963877

約数列:

[1, 7, 13, 67, 91, 163, 281, 469, 871, 1141, 1967, 2119, 3653, 6097, 10921, 14833, 18827, 25571, 45803, 76447, 131789, 141973, 244751, 320621, 595439, 993811, 1713257, 3068801, 4168073, 21481607, 39894413, 279260891]

約数ペア:

[(1, 279260891), (7, 39894413), (13, 21481607), (67, 4168073), (91, 3068801), (163, 1713257), (281, 993811), (469, 595439), (871, 320621), (1141, 244751), (1967, 141973), (2119, 131789), (3653, 76447), (6097, 45803), (10921, 25571), (14833, 18827)]