20918172

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{4283}}^1$

素因数の和:4338

約数の個数: 48

約数和(自身を含む): 54698112

約数和(自身を除く): 33779940

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 37, 44, 66, 74, 111, 132, 148, 222, 407, 444, 814, 1221, 1628, 2442, 4283, 4884, 8566, 12849, 17132, 25698, 47113, 51396, 94226, 141339, 158471, 188452, 282678, 316942, 475413, 565356, 633884, 950826, 1743181, 1901652, 3486362, 5229543, 6972724, 10459086, 20918172]

約数ペア:

[(1, 20918172), (2, 10459086), (3, 6972724), (4, 5229543), (6, 3486362), (11, 1901652), (12, 1743181), (22, 950826), (33, 633884), (37, 565356), (44, 475413), (66, 316942), (74, 282678), (111, 188452), (132, 158471), (148, 141339), (222, 94226), (407, 51396), (444, 47113), (814, 25698), (1221, 17132), (1628, 12849), (2442, 8566), (4283, 4884)]