238278001

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{421}}^1$

素因数の和:661

約数の個数: 24

約数和(自身を含む): 275233464

約数和(自身を除く): 36955463

約数列:

[1, 13, 17, 169, 197, 221, 421, 2561, 2873, 3349, 5473, 7157, 33293, 43537, 71149, 82937, 93041, 565981, 1078181, 1209533, 1409929, 14016353, 18329077, 238278001]

約数ペア:

[(1, 238278001), (13, 18329077), (17, 14016353), (169, 1409929), (197, 1209533), (221, 1078181), (421, 565981), (2561, 93041), (2873, 82937), (3349, 71149), (5473, 43537), (7157, 33293)]