21858044

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{4723}}^1$

素因数の和:4829

約数の個数: 24

約数和(自身を含む): 41665680

約数和(自身を除く): 19807636

約数列:

[1, 2, 4, 13, 26, 52, 89, 178, 356, 1157, 2314, 4628, 4723, 9446, 18892, 61399, 122798, 245596, 420347, 840694, 1681388, 5464511, 10929022, 21858044]

約数ペア:

[(1, 21858044), (2, 10929022), (4, 5464511), (13, 1681388), (26, 840694), (52, 420347), (89, 245596), (178, 122798), (356, 61399), (1157, 18892), (2314, 9446), (4628, 4723)]