19968564

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{21611}}^1$

素因数の和:21636

約数の個数: 48

約数和(自身を含む): 58093056

約数和(自身を除く): 38124492

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 132, 154, 231, 308, 462, 924, 21611, 43222, 64833, 86444, 129666, 151277, 237721, 259332, 302554, 453831, 475442, 605108, 713163, 907662, 950884, 1426326, 1664047, 1815324, 2852652, 3328094, 4992141, 6656188, 9984282, 19968564]

約数ペア:

[(1, 19968564), (2, 9984282), (3, 6656188), (4, 4992141), (6, 3328094), (7, 2852652), (11, 1815324), (12, 1664047), (14, 1426326), (21, 950884), (22, 907662), (28, 713163), (33, 605108), (42, 475442), (44, 453831), (66, 302554), (77, 259332), (84, 237721), (132, 151277), (154, 129666), (231, 86444), (308, 64833), (462, 43222), (924, 21611)]