19161808

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{677}}^1$

素因数の和:775

約数の個数: 40

約数和(自身を含む): 39093480

約数和(自身を除く): 19931672

約数列:

[1, 2, 4, 8, 16, 29, 58, 61, 116, 122, 232, 244, 464, 488, 677, 976, 1354, 1769, 2708, 3538, 5416, 7076, 10832, 14152, 19633, 28304, 39266, 41297, 78532, 82594, 157064, 165188, 314128, 330376, 660752, 1197613, 2395226, 4790452, 9580904, 19161808]

約数ペア:

[(1, 19161808), (2, 9580904), (4, 4790452), (8, 2395226), (16, 1197613), (29, 660752), (58, 330376), (61, 314128), (116, 165188), (122, 157064), (232, 82594), (244, 78532), (464, 41297), (488, 39266), (677, 28304), (976, 19633), (1354, 14152), (1769, 10832), (2708, 7076), (3538, 5416)]