20950358

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 19692202

約数列:

[1, 2, 11, 13, 17, 22, 26, 31, 34, 62, 139, 143, 187, 221, 278, 286, 341, 374, 403, 442, 527, 682, 806, 1054, 1529, 1807, 2363, 2431, 3058, 3614, 4309, 4433, 4726, 4862, 5797, 6851, 8618, 8866, 11594, 13702, 19877, 25993, 30719, 39754, 47399, 51986, 56017, 61438, 73253, 75361, 94798, 112034, 146506, 150722, 337909, 616187, 675818, 805783, 952289, 1232374, 1611566, 1904578, 10475179, 20950358]

約数ペア:

[(1, 20950358), (2, 10475179), (11, 1904578), (13, 1611566), (17, 1232374), (22, 952289), (26, 805783), (31, 675818), (34, 616187), (62, 337909), (139, 150722), (143, 146506), (187, 112034), (221, 94798), (278, 75361), (286, 73253), (341, 61438), (374, 56017), (403, 51986), (442, 47399), (527, 39754), (682, 30719), (806, 25993), (1054, 19877), (1529, 13702), (1807, 11594), (2363, 8866), (2431, 8618), (3058, 6851), (3614, 5797), (4309, 4862), (4433, 4726)]