21379644

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4153}}^1$

素因数の和:4187

約数の個数: 72

約数和(自身を含む): 63506352

約数和(自身を除く): 42126708

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 33, 36, 39, 44, 52, 66, 78, 99, 117, 132, 143, 156, 198, 234, 286, 396, 429, 468, 572, 858, 1287, 1716, 2574, 4153, 5148, 8306, 12459, 16612, 24918, 37377, 45683, 49836, 53989, 74754, 91366, 107978, 137049, 149508, 161967, 182732, 215956, 274098, 323934, 411147, 485901, 548196, 593879, 647868, 822294, 971802, 1187758, 1644588, 1781637, 1943604, 2375516, 3563274, 5344911, 7126548, 10689822, 21379644]

約数ペア:

[(1, 21379644), (2, 10689822), (3, 7126548), (4, 5344911), (6, 3563274), (9, 2375516), (11, 1943604), (12, 1781637), (13, 1644588), (18, 1187758), (22, 971802), (26, 822294), (33, 647868), (36, 593879), (39, 548196), (44, 485901), (52, 411147), (66, 323934), (78, 274098), (99, 215956), (117, 182732), (132, 161967), (143, 149508), (156, 137049), (198, 107978), (234, 91366), (286, 74754), (396, 53989), (429, 49836), (468, 45683), (572, 37377), (858, 24918), (1287, 16612), (1716, 12459), (2574, 8306), (4153, 5148)]