21259308

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{337}}^1\times {\mathrm{751}}^1$

素因数の和:1102

約数の個数: 48

約数和(自身を含む): 56935424

約数和(自身を除く): 35676116

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 337, 674, 751, 1011, 1348, 1502, 2022, 2253, 2359, 3004, 4044, 4506, 4718, 5257, 7077, 9012, 9436, 10514, 14154, 15771, 21028, 28308, 31542, 63084, 253087, 506174, 759261, 1012348, 1518522, 1771609, 3037044, 3543218, 5314827, 7086436, 10629654, 21259308]

約数ペア:

[(1, 21259308), (2, 10629654), (3, 7086436), (4, 5314827), (6, 3543218), (7, 3037044), (12, 1771609), (14, 1518522), (21, 1012348), (28, 759261), (42, 506174), (84, 253087), (337, 63084), (674, 31542), (751, 28308), (1011, 21028), (1348, 15771), (1502, 14154), (2022, 10514), (2253, 9436), (2359, 9012), (3004, 7077), (4044, 5257), (4506, 4718)]