21916258

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 41636160

約数和(自身を除く): 19719902

約数列:

[1, 2, 7, 13, 14, 26, 59, 91, 118, 157, 169, 182, 314, 338, 413, 767, 826, 1099, 1183, 1534, 2041, 2198, 2366, 4082, 5369, 9263, 9971, 10738, 14287, 18526, 19942, 26533, 28574, 53066, 64841, 69797, 120419, 129682, 139594, 185731, 240838, 371462, 842933, 1565447, 1685866, 3130894, 10958129, 21916258]

約数ペア:

[(1, 21916258), (2, 10958129), (7, 3130894), (13, 1685866), (14, 1565447), (26, 842933), (59, 371462), (91, 240838), (118, 185731), (157, 139594), (169, 129682), (182, 120419), (314, 69797), (338, 64841), (413, 53066), (767, 28574), (826, 26533), (1099, 19942), (1183, 18526), (1534, 14287), (2041, 10738), (2198, 9971), (2366, 9263), (4082, 5369)]