19004577904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2124841}}^1$

素因数の和:2124905

約数の個数: 40

約数和(自身を含む): 40575982832

約数和(自身を除く): 21571404928

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 344, 559, 688, 1118, 2236, 4472, 8944, 2124841, 4249682, 8499364, 16998728, 27622933, 33997456, 55245866, 91368163, 110491732, 182736326, 220983464, 365472652, 441966928, 730945304, 1187786119, 1461890608, 2375572238, 4751144476, 9502288952, 19004577904]

約数ペア:

[(1, 19004577904), (2, 9502288952), (4, 4751144476), (8, 2375572238), (13, 1461890608), (16, 1187786119), (26, 730945304), (43, 441966928), (52, 365472652), (86, 220983464), (104, 182736326), (172, 110491732), (208, 91368163), (344, 55245866), (559, 33997456), (688, 27622933), (1118, 16998728), (2236, 8499364), (4472, 4249682), (8944, 2124841)]