40781221

素因数分解:

${\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:265

約数の個数: 24

約数和(自身を含む): 46840680

約数和(自身を除く): 6059459

約数列:

[1, 13, 29, 53, 157, 169, 377, 689, 1537, 2041, 4553, 4901, 8321, 8957, 19981, 26533, 59189, 108173, 241309, 259753, 769457, 1406249, 3137017, 40781221]

約数ペア:

[(1, 40781221), (13, 3137017), (29, 1406249), (53, 769457), (157, 259753), (169, 241309), (377, 108173), (689, 59189), (1537, 26533), (2041, 19981), (4553, 8957), (4901, 8321)]