18962874

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^2$

素因数の和:212

約数の個数: 72

約数和(自身を含む): 49988640

約数和(自身を除く): 31025766

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 57, 63, 89, 114, 126, 133, 171, 178, 266, 267, 342, 399, 534, 623, 798, 801, 1197, 1246, 1602, 1691, 1869, 2394, 3382, 3738, 5073, 5607, 7921, 10146, 11214, 11837, 15219, 15842, 23674, 23763, 30438, 35511, 47526, 55447, 71022, 71289, 106533, 110894, 142578, 150499, 166341, 213066, 300998, 332682, 451497, 499023, 902994, 998046, 1053493, 1354491, 2106986, 2708982, 3160479, 6320958, 9481437, 18962874]

約数ペア:

[(1, 18962874), (2, 9481437), (3, 6320958), (6, 3160479), (7, 2708982), (9, 2106986), (14, 1354491), (18, 1053493), (19, 998046), (21, 902994), (38, 499023), (42, 451497), (57, 332682), (63, 300998), (89, 213066), (114, 166341), (126, 150499), (133, 142578), (171, 110894), (178, 106533), (266, 71289), (267, 71022), (342, 55447), (399, 47526), (534, 35511), (623, 30438), (798, 23763), (801, 23674), (1197, 15842), (1246, 15219), (1602, 11837), (1691, 11214), (1869, 10146), (2394, 7921), (3382, 5607), (3738, 5073)]