21932980

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{10061}}^1$

素因数の和:10179

約数の個数: 24

約数和(自身を含む): 46486440

約数和(自身を除く): 24553460

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 10061, 20122, 40244, 50305, 100610, 201220, 1096649, 2193298, 4386596, 5483245, 10966490, 21932980]

約数ペア:

[(1, 21932980), (2, 10966490), (4, 5483245), (5, 4386596), (10, 2193298), (20, 1096649), (109, 201220), (218, 100610), (436, 50305), (545, 40244), (1090, 20122), (2180, 10061)]