15817215

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{127}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 28090368

約数和(自身を除く): 12273153

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 127, 285, 345, 361, 381, 437, 635, 1083, 1311, 1805, 1905, 2185, 2413, 2921, 5415, 6555, 7239, 8303, 8763, 12065, 14605, 24909, 36195, 41515, 43815, 45847, 55499, 124545, 137541, 166497, 229235, 277495, 687705, 832485, 1054481, 3163443, 5272405, 15817215]

約数ペア:

[(1, 15817215), (3, 5272405), (5, 3163443), (15, 1054481), (19, 832485), (23, 687705), (57, 277495), (69, 229235), (95, 166497), (115, 137541), (127, 124545), (285, 55499), (345, 45847), (361, 43815), (381, 41515), (437, 36195), (635, 24909), (1083, 14605), (1311, 12065), (1805, 8763), (1905, 8303), (2185, 7239), (2413, 6555), (2921, 5415)]