21273392

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{11173}}^1$

素因数の和:11205

約数の個数: 40

約数和(自身を含む): 49880736

約数和(自身を除く): 28607344

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 11173, 22346, 44692, 78211, 89384, 156422, 178768, 189941, 312844, 379882, 625688, 759764, 1251376, 1329587, 1519528, 2659174, 3039056, 5318348, 10636696, 21273392]

約数ペア:

[(1, 21273392), (2, 10636696), (4, 5318348), (7, 3039056), (8, 2659174), (14, 1519528), (16, 1329587), (17, 1251376), (28, 759764), (34, 625688), (56, 379882), (68, 312844), (112, 189941), (119, 178768), (136, 156422), (238, 89384), (272, 78211), (476, 44692), (952, 22346), (1904, 11173)]