18987276

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20549}}^1$

素因数の和:20574

約数の個数: 48

約数和(自身を含む): 55238400

約数和(自身を除く): 36251124

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, 20549, 41098, 61647, 82196, 123294, 143843, 226039, 246588, 287686, 431529, 452078, 575372, 678117, 863058, 904156, 1356234, 1582273, 1726116, 2712468, 3164546, 4746819, 6329092, 9493638, 18987276]

約数ペア:

[(1, 18987276), (2, 9493638), (3, 6329092), (4, 4746819), (6, 3164546), (7, 2712468), (11, 1726116), (12, 1582273), (14, 1356234), (21, 904156), (22, 863058), (28, 678117), (33, 575372), (42, 452078), (44, 431529), (66, 287686), (77, 246588), (84, 226039), (132, 143843), (154, 123294), (231, 82196), (308, 61647), (462, 41098), (924, 20549)]