18421438

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:229

約数の個数: 48

約数和(自身を含む): 34924320

約数和(自身を除く): 16502882

約数列:

[1, 2, 7, 14, 17, 29, 34, 58, 119, 157, 203, 238, 289, 314, 406, 493, 578, 986, 1099, 2023, 2198, 2669, 3451, 4046, 4553, 5338, 6902, 8381, 9106, 16762, 18683, 31871, 37366, 45373, 58667, 63742, 77401, 90746, 117334, 154802, 317611, 541807, 635222, 1083614, 1315817, 2631634, 9210719, 18421438]

約数ペア:

[(1, 18421438), (2, 9210719), (7, 2631634), (14, 1315817), (17, 1083614), (29, 635222), (34, 541807), (58, 317611), (119, 154802), (157, 117334), (203, 90746), (238, 77401), (289, 63742), (314, 58667), (406, 45373), (493, 37366), (578, 31871), (986, 18683), (1099, 16762), (2023, 9106), (2198, 8381), (2669, 6902), (3451, 5338), (4046, 4553)]