21080796

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{5507}}^1$

素因数の和:5554

約数の個数: 48

約数和(自身を含む): 55520640

約数和(自身を除く): 34439844

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 29, 33, 44, 58, 66, 87, 116, 132, 174, 319, 348, 638, 957, 1276, 1914, 3828, 5507, 11014, 16521, 22028, 33042, 60577, 66084, 121154, 159703, 181731, 242308, 319406, 363462, 479109, 638812, 726924, 958218, 1756733, 1916436, 3513466, 5270199, 7026932, 10540398, 21080796]

約数ペア:

[(1, 21080796), (2, 10540398), (3, 7026932), (4, 5270199), (6, 3513466), (11, 1916436), (12, 1756733), (22, 958218), (29, 726924), (33, 638812), (44, 479109), (58, 363462), (66, 319406), (87, 242308), (116, 181731), (132, 159703), (174, 121154), (319, 66084), (348, 60577), (638, 33042), (957, 22028), (1276, 16521), (1914, 11014), (3828, 5507)]