217871269

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{15131}}^1$

素因数の和:15177

約数の個数: 24

約数和(自身を含む): 289808064

約数和(自身を除く): 71936795

約数列:

[1, 7, 11, 17, 77, 119, 121, 187, 847, 1309, 2057, 14399, 15131, 105917, 166441, 257227, 1165087, 1800589, 1830851, 2829497, 12815957, 19806479, 31124467, 217871269]

約数ペア:

[(1, 217871269), (7, 31124467), (11, 19806479), (17, 12815957), (77, 2829497), (119, 1830851), (121, 1800589), (187, 1165087), (847, 257227), (1309, 166441), (2057, 105917), (14399, 15131)]