18938291211

素因数分解:

$3^3\times 7^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2503}}^1$

素因数の和:2595

約数の個数: 128

約数和(自身を含む): 35256320000

約数和(自身を除く): 16318028789

約数列:

[1, 3, 7, 9, 19, 21, 27, 43, 49, 57, 63, 129, 133, 147, 171, 189, 301, 343, 387, 399, 441, 513, 817, 903, 931, 1029, 1161, 1197, 1323, 2107, 2451, 2503, 2709, 2793, 3087, 3591, 5719, 6321, 6517, 7353, 7509, 8127, 8379, 9261, 14749, 17157, 17521, 18963, 19551, 22059, 22527, 25137, 40033, 44247, 47557, 51471, 52563, 56889, 58653, 67581, 107629, 120099, 122647, 132741, 142671, 154413, 157689, 175959, 280231, 322887, 332899, 360297, 367941, 398223, 428013, 473067, 753403, 840693, 858529, 968661, 998697, 1080891, 1103823, 1284039, 2044951, 2260209, 2330293, 2522079, 2575587, 2905983, 2996091, 3311469, 5273821, 6134853, 6780627, 6990879, 7566237, 7726761, 8988273, 14314657, 15821463, 16312051, 18404559, 20341881, 20972637, 23180283, 36916747, 42943971, 47464389, 48936153, 55213677, 62917911, 100202599, 110750241, 128831913, 142393167, 146808459, 300607797, 332250723, 386495739, 440425377, 701418193, 901823391, 996752169, 2104254579, 2705470173, 6312763737, 18938291211]

約数ペア:

[(1, 18938291211), (3, 6312763737), (7, 2705470173), (9, 2104254579), (19, 996752169), (21, 901823391), (27, 701418193), (43, 440425377), (49, 386495739), (57, 332250723), (63, 300607797), (129, 146808459), (133, 142393167), (147, 128831913), (171, 110750241), (189, 100202599), (301, 62917911), (343, 55213677), (387, 48936153), (399, 47464389), (441, 42943971), (513, 36916747), (817, 23180283), (903, 20972637), (931, 20341881), (1029, 18404559), (1161, 16312051), (1197, 15821463), (1323, 14314657), (2107, 8988273), (2451, 7726761), (2503, 7566237), (2709, 6990879), (2793, 6780627), (3087, 6134853), (3591, 5273821), (5719, 3311469), (6321, 2996091), (6517, 2905983), (7353, 2575587), (7509, 2522079), (8127, 2330293), (8379, 2260209), (9261, 2044951), (14749, 1284039), (17157, 1103823), (17521, 1080891), (18963, 998697), (19551, 968661), (22059, 858529), (22527, 840693), (25137, 753403), (40033, 473067), (44247, 428013), (47557, 398223), (51471, 367941), (52563, 360297), (56889, 332899), (58653, 322887), (67581, 280231), (107629, 175959), (120099, 157689), (122647, 154413), (132741, 142671)]