20825154

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1489}}^1$

素因数の和:1544

約数の個数: 64

約数和(自身を含む): 54355200

約数和(自身を除く): 33530046

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 37, 42, 54, 63, 74, 111, 126, 189, 222, 259, 333, 378, 518, 666, 777, 999, 1489, 1554, 1998, 2331, 2978, 4467, 4662, 6993, 8934, 10423, 13401, 13986, 20846, 26802, 31269, 40203, 55093, 62538, 80406, 93807, 110186, 165279, 187614, 281421, 330558, 385651, 495837, 562842, 771302, 991674, 1156953, 1487511, 2313906, 2975022, 3470859, 6941718, 10412577, 20825154]

約数ペア:

[(1, 20825154), (2, 10412577), (3, 6941718), (6, 3470859), (7, 2975022), (9, 2313906), (14, 1487511), (18, 1156953), (21, 991674), (27, 771302), (37, 562842), (42, 495837), (54, 385651), (63, 330558), (74, 281421), (111, 187614), (126, 165279), (189, 110186), (222, 93807), (259, 80406), (333, 62538), (378, 55093), (518, 40203), (666, 31269), (777, 26802), (999, 20846), (1489, 13986), (1554, 13401), (1998, 10423), (2331, 8934), (2978, 6993), (4467, 4662)]