21921976

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{359}}^1\times {\mathrm{449}}^1$

素因数の和:831

約数の個数: 32

約数和(自身を含む): 43740000

約数和(自身を除く): 21818024

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 359, 449, 718, 898, 1436, 1796, 2872, 3592, 6103, 7633, 12206, 15266, 24412, 30532, 48824, 61064, 161191, 322382, 644764, 1289528, 2740247, 5480494, 10960988, 21921976]

約数ペア:

[(1, 21921976), (2, 10960988), (4, 5480494), (8, 2740247), (17, 1289528), (34, 644764), (68, 322382), (136, 161191), (359, 61064), (449, 48824), (718, 30532), (898, 24412), (1436, 15266), (1796, 12206), (2872, 7633), (3592, 6103)]