20857232

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{6971}}^1$

素因数の和:7007

約数の個数: 40

約数和(自身を含む): 46684512

約数和(自身を除く): 25827280

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 176, 187, 272, 374, 748, 1496, 2992, 6971, 13942, 27884, 55768, 76681, 111536, 118507, 153362, 237014, 306724, 474028, 613448, 948056, 1226896, 1303577, 1896112, 2607154, 5214308, 10428616, 20857232]

約数ペア:

[(1, 20857232), (2, 10428616), (4, 5214308), (8, 2607154), (11, 1896112), (16, 1303577), (17, 1226896), (22, 948056), (34, 613448), (44, 474028), (68, 306724), (88, 237014), (136, 153362), (176, 118507), (187, 111536), (272, 76681), (374, 55768), (748, 27884), (1496, 13942), (2992, 6971)]