21616252

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{3803}}^1$

素因数の和:3850

約数の個数: 36

約数和(自身を含む): 45533880

約数和(自身を除く): 23917628

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 98, 116, 196, 203, 406, 812, 1421, 2842, 3803, 5684, 7606, 15212, 26621, 53242, 106484, 110287, 186347, 220574, 372694, 441148, 745388, 772009, 1544018, 3088036, 5404063, 10808126, 21616252]

約数ペア:

[(1, 21616252), (2, 10808126), (4, 5404063), (7, 3088036), (14, 1544018), (28, 772009), (29, 745388), (49, 441148), (58, 372694), (98, 220574), (116, 186347), (196, 110287), (203, 106484), (406, 53242), (812, 26621), (1421, 15212), (2842, 7606), (3803, 5684)]