40897311

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{21401}}^1$

素因数の和:21431

約数の個数: 24

約数和(自身を含む): 68315184

約数和(自身を除く): 27417873

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 21401, 64203, 149807, 278213, 449421, 834639, 1048649, 1947491, 3145947, 5842473, 13632437, 40897311]

約数ペア:

[(1, 40897311), (3, 13632437), (7, 5842473), (13, 3145947), (21, 1947491), (39, 1048649), (49, 834639), (91, 449421), (147, 278213), (273, 149807), (637, 64203), (1911, 21401)]