21283388

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{733}}^1$

素因数の和:822

約数の個数: 48

約数和(自身を含む): 45872064

約数和(自身を除く): 24588676

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 61, 68, 119, 122, 238, 244, 427, 476, 733, 854, 1037, 1466, 1708, 2074, 2932, 4148, 5131, 7259, 10262, 12461, 14518, 20524, 24922, 29036, 44713, 49844, 87227, 89426, 174454, 178852, 312991, 348908, 625982, 760121, 1251964, 1520242, 3040484, 5320847, 10641694, 21283388]

約数ペア:

[(1, 21283388), (2, 10641694), (4, 5320847), (7, 3040484), (14, 1520242), (17, 1251964), (28, 760121), (34, 625982), (61, 348908), (68, 312991), (119, 178852), (122, 174454), (238, 89426), (244, 87227), (427, 49844), (476, 44713), (733, 29036), (854, 24922), (1037, 20524), (1466, 14518), (1708, 12461), (2074, 10262), (2932, 7259), (4148, 5131)]