19968354

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{439}}^1$

素因数の和:492

約数の個数: 72

約数和(自身を含む): 52303680

約数和(自身を除く): 32335326

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 57, 63, 114, 126, 133, 171, 266, 342, 361, 399, 439, 722, 798, 878, 1083, 1197, 1317, 2166, 2394, 2527, 2634, 3073, 3249, 3951, 5054, 6146, 6498, 7581, 7902, 8341, 9219, 15162, 16682, 18438, 22743, 25023, 27657, 45486, 50046, 55314, 58387, 75069, 116774, 150138, 158479, 175161, 316958, 350322, 475437, 525483, 950874, 1050966, 1109353, 1426311, 2218706, 2852622, 3328059, 6656118, 9984177, 19968354]

約数ペア:

[(1, 19968354), (2, 9984177), (3, 6656118), (6, 3328059), (7, 2852622), (9, 2218706), (14, 1426311), (18, 1109353), (19, 1050966), (21, 950874), (38, 525483), (42, 475437), (57, 350322), (63, 316958), (114, 175161), (126, 158479), (133, 150138), (171, 116774), (266, 75069), (342, 58387), (361, 55314), (399, 50046), (439, 45486), (722, 27657), (798, 25023), (878, 22743), (1083, 18438), (1197, 16682), (1317, 15162), (2166, 9219), (2394, 8341), (2527, 7902), (2634, 7581), (3073, 6498), (3249, 6146), (3951, 5054)]