21649854

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{359}}^1$

素因数の和:429

約数の個数: 48

約数和(自身を含む): 47779200

約数和(自身を除く): 26129346

約数列:

[1, 2, 3, 6, 19, 23, 38, 46, 57, 69, 114, 138, 359, 437, 529, 718, 874, 1058, 1077, 1311, 1587, 2154, 2622, 3174, 6821, 8257, 10051, 13642, 16514, 20102, 20463, 24771, 30153, 40926, 49542, 60306, 156883, 189911, 313766, 379822, 470649, 569733, 941298, 1139466, 3608309, 7216618, 10824927, 21649854]

約数ペア:

[(1, 21649854), (2, 10824927), (3, 7216618), (6, 3608309), (19, 1139466), (23, 941298), (38, 569733), (46, 470649), (57, 379822), (69, 313766), (114, 189911), (138, 156883), (359, 60306), (437, 49542), (529, 40926), (718, 30153), (874, 24771), (1058, 20463), (1077, 20102), (1311, 16514), (1587, 13642), (2154, 10051), (2622, 8257), (3174, 6821)]