21847960

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{5011}}^1$

素因数の和:5131

約数の個数: 32

約数和(自身を含む): 49618800

約数和(自身を除く): 27770840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 5011, 10022, 20044, 25055, 40088, 50110, 100220, 200440, 546199, 1092398, 2184796, 2730995, 4369592, 5461990, 10923980, 21847960]

約数ペア:

[(1, 21847960), (2, 10923980), (4, 5461990), (5, 4369592), (8, 2730995), (10, 2184796), (20, 1092398), (40, 546199), (109, 200440), (218, 100220), (436, 50110), (545, 40088), (872, 25055), (1090, 20044), (2180, 10022), (4360, 5011)]