217663138

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1171}}^1$

素因数の和:1279

約数の個数: 64

約数和(自身を含む): 437446656

約数和(自身を除く): 219783518

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 71, 77, 119, 142, 154, 187, 238, 374, 497, 781, 994, 1171, 1207, 1309, 1562, 2342, 2414, 2618, 5467, 8197, 8449, 10934, 12881, 13277, 16394, 16898, 19907, 25762, 26554, 39814, 83141, 90167, 92939, 139349, 166282, 180334, 185878, 218977, 278698, 437954, 581987, 914551, 1163974, 1413397, 1532839, 1829102, 2826794, 3065678, 6401857, 9893779, 12803714, 15547367, 19787558, 31094734, 108831569, 217663138]

約数ペア:

[(1, 217663138), (2, 108831569), (7, 31094734), (11, 19787558), (14, 15547367), (17, 12803714), (22, 9893779), (34, 6401857), (71, 3065678), (77, 2826794), (119, 1829102), (142, 1532839), (154, 1413397), (187, 1163974), (238, 914551), (374, 581987), (497, 437954), (781, 278698), (994, 218977), (1171, 185878), (1207, 180334), (1309, 166282), (1562, 139349), (2342, 92939), (2414, 90167), (2618, 83141), (5467, 39814), (8197, 26554), (8449, 25762), (10934, 19907), (12881, 16898), (13277, 16394)]