19642276

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{661}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 40037760

約数和(自身を除く): 20395484

約数列:

[1, 2, 4, 17, 19, 23, 34, 38, 46, 68, 76, 92, 323, 391, 437, 646, 661, 782, 874, 1292, 1322, 1564, 1748, 2644, 7429, 11237, 12559, 14858, 15203, 22474, 25118, 29716, 30406, 44948, 50236, 60812, 213503, 258451, 288857, 427006, 516902, 577714, 854012, 1033804, 1155428, 4910569, 9821138, 19642276]

約数ペア:

[(1, 19642276), (2, 9821138), (4, 4910569), (17, 1155428), (19, 1033804), (23, 854012), (34, 577714), (38, 516902), (46, 427006), (68, 288857), (76, 258451), (92, 213503), (323, 60812), (391, 50236), (437, 44948), (646, 30406), (661, 29716), (782, 25118), (874, 22474), (1292, 15203), (1322, 14858), (1564, 12559), (1748, 11237), (2644, 7429)]