19745296

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{317}}^1$

素因数の和:571

約数の個数: 40

約数和(自身を含む): 40812120

約数和(自身を除く): 21066824

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 229, 272, 317, 458, 634, 916, 1268, 1832, 2536, 3664, 3893, 5072, 5389, 7786, 10778, 15572, 21556, 31144, 43112, 62288, 72593, 86224, 145186, 290372, 580744, 1161488, 1234081, 2468162, 4936324, 9872648, 19745296]

約数ペア:

[(1, 19745296), (2, 9872648), (4, 4936324), (8, 2468162), (16, 1234081), (17, 1161488), (34, 580744), (68, 290372), (136, 145186), (229, 86224), (272, 72593), (317, 62288), (458, 43112), (634, 31144), (916, 21556), (1268, 15572), (1832, 10778), (2536, 7786), (3664, 5389), (3893, 5072)]