40989403

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 53795840

約数和(自身を除く): 12806437

約数列:

[1, 7, 13, 19, 91, 133, 151, 157, 247, 1057, 1099, 1729, 1963, 2041, 2869, 2983, 13741, 14287, 20083, 20881, 23707, 37297, 38779, 165949, 261079, 271453, 308191, 450433, 2157337, 3153031, 5855629, 40989403]

約数ペア:

[(1, 40989403), (7, 5855629), (13, 3153031), (19, 2157337), (91, 450433), (133, 308191), (151, 271453), (157, 261079), (247, 165949), (1057, 38779), (1099, 37297), (1729, 23707), (1963, 20881), (2041, 20083), (2869, 14287), (2983, 13741)]