18836895

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{347}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 38486016

約数和(自身を除く): 19649121

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 47, 55, 77, 105, 141, 165, 231, 235, 329, 347, 385, 517, 705, 987, 1041, 1155, 1551, 1645, 1735, 2429, 2585, 3619, 3817, 4935, 5205, 7287, 7755, 10857, 11451, 12145, 16309, 18095, 19085, 26719, 36435, 48927, 54285, 57255, 80157, 81545, 114163, 133595, 179399, 244635, 342489, 400785, 538197, 570815, 896995, 1255793, 1712445, 2690985, 3767379, 6278965, 18836895]

約数ペア:

[(1, 18836895), (3, 6278965), (5, 3767379), (7, 2690985), (11, 1712445), (15, 1255793), (21, 896995), (33, 570815), (35, 538197), (47, 400785), (55, 342489), (77, 244635), (105, 179399), (141, 133595), (165, 114163), (231, 81545), (235, 80157), (329, 57255), (347, 54285), (385, 48927), (517, 36435), (705, 26719), (987, 19085), (1041, 18095), (1155, 16309), (1551, 12145), (1645, 11451), (1735, 10857), (2429, 7755), (2585, 7287), (3619, 5205), (3817, 4935)]