40878201

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{21391}}^1$

素因数の和:21421

約数の個数: 24

約数和(自身を含む): 68283264

約数和(自身を除く): 27405063

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 21391, 64173, 149737, 278083, 449211, 834249, 1048159, 1946581, 3144477, 5839743, 13626067, 40878201]

約数ペア:

[(1, 40878201), (3, 13626067), (7, 5839743), (13, 3144477), (21, 1946581), (39, 1048159), (49, 834249), (91, 449211), (147, 278083), (273, 149737), (637, 64173), (1911, 21391)]