20394374

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 41997312

約数和(自身を除く): 21602938

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 61, 77, 91, 122, 143, 154, 167, 182, 286, 334, 427, 671, 793, 854, 1001, 1169, 1342, 1586, 1837, 2002, 2171, 2338, 3674, 4342, 4697, 5551, 8723, 9394, 10187, 11102, 12859, 15197, 17446, 20374, 23881, 25718, 30394, 47762, 61061, 71309, 112057, 122122, 132431, 142618, 167167, 224114, 264862, 334334, 784399, 927017, 1456741, 1568798, 1854034, 2913482, 10197187, 20394374]

約数ペア:

[(1, 20394374), (2, 10197187), (7, 2913482), (11, 1854034), (13, 1568798), (14, 1456741), (22, 927017), (26, 784399), (61, 334334), (77, 264862), (91, 224114), (122, 167167), (143, 142618), (154, 132431), (167, 122122), (182, 112057), (286, 71309), (334, 61061), (427, 47762), (671, 30394), (793, 25718), (854, 23881), (1001, 20374), (1169, 17446), (1342, 15197), (1586, 12859), (1837, 11102), (2002, 10187), (2171, 9394), (2338, 8723), (3674, 5551), (4342, 4697)]