21128628

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{2069}}^1$

素因数の和:2136

約数の個数: 48

約数和(自身を含む): 52859520

約数和(自身を除く): 31730892

約数列:

[1, 2, 3, 4, 6, 12, 23, 37, 46, 69, 74, 92, 111, 138, 148, 222, 276, 444, 851, 1702, 2069, 2553, 3404, 4138, 5106, 6207, 8276, 10212, 12414, 24828, 47587, 76553, 95174, 142761, 153106, 190348, 229659, 285522, 306212, 459318, 571044, 918636, 1760719, 3521438, 5282157, 7042876, 10564314, 21128628]

約数ペア:

[(1, 21128628), (2, 10564314), (3, 7042876), (4, 5282157), (6, 3521438), (12, 1760719), (23, 918636), (37, 571044), (46, 459318), (69, 306212), (74, 285522), (92, 229659), (111, 190348), (138, 153106), (148, 142761), (222, 95174), (276, 76553), (444, 47587), (851, 24828), (1702, 12414), (2069, 10212), (2553, 8276), (3404, 6207), (4138, 5106)]