18979416

素因数分解:

$2^3\times 3^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:265

約数の個数: 96

約数和(自身を含む): 54718560

約数和(自身を除く): 35739144

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 36, 46, 69, 72, 73, 92, 138, 146, 157, 184, 207, 219, 276, 292, 314, 414, 438, 471, 552, 584, 628, 657, 828, 876, 942, 1256, 1314, 1413, 1656, 1679, 1752, 1884, 2628, 2826, 3358, 3611, 3768, 5037, 5256, 5652, 6716, 7222, 10074, 10833, 11304, 11461, 13432, 14444, 15111, 20148, 21666, 22922, 28888, 30222, 32499, 34383, 40296, 43332, 45844, 60444, 64998, 68766, 86664, 91688, 103149, 120888, 129996, 137532, 206298, 259992, 263603, 275064, 412596, 527206, 790809, 825192, 1054412, 1581618, 2108824, 2372427, 3163236, 4744854, 6326472, 9489708, 18979416]

約数ペア:

[(1, 18979416), (2, 9489708), (3, 6326472), (4, 4744854), (6, 3163236), (8, 2372427), (9, 2108824), (12, 1581618), (18, 1054412), (23, 825192), (24, 790809), (36, 527206), (46, 412596), (69, 275064), (72, 263603), (73, 259992), (92, 206298), (138, 137532), (146, 129996), (157, 120888), (184, 103149), (207, 91688), (219, 86664), (276, 68766), (292, 64998), (314, 60444), (414, 45844), (438, 43332), (471, 40296), (552, 34383), (584, 32499), (628, 30222), (657, 28888), (828, 22922), (876, 21666), (942, 20148), (1256, 15111), (1314, 14444), (1413, 13432), (1656, 11461), (1679, 11304), (1752, 10833), (1884, 10074), (2628, 7222), (2826, 6716), (3358, 5652), (3611, 5256), (3768, 5037)]