21170448

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:333

約数の個数: 120

約数和(自身を含む): 65537472

約数和(自身を除く): 44367024

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 43, 48, 52, 72, 78, 86, 104, 117, 129, 144, 156, 172, 208, 234, 258, 263, 312, 344, 387, 468, 516, 526, 559, 624, 688, 774, 789, 936, 1032, 1052, 1118, 1548, 1578, 1677, 1872, 2064, 2104, 2236, 2367, 3096, 3156, 3354, 3419, 4208, 4472, 4734, 5031, 6192, 6312, 6708, 6838, 8944, 9468, 10062, 10257, 11309, 12624, 13416, 13676, 18936, 20124, 20514, 22618, 26832, 27352, 30771, 33927, 37872, 40248, 41028, 45236, 54704, 61542, 67854, 80496, 82056, 90472, 101781, 123084, 135708, 147017, 164112, 180944, 203562, 246168, 271416, 294034, 407124, 441051, 492336, 542832, 588068, 814248, 882102, 1176136, 1323153, 1628496, 1764204, 2352272, 2646306, 3528408, 5292612, 7056816, 10585224, 21170448]

約数ペア:

[(1, 21170448), (2, 10585224), (3, 7056816), (4, 5292612), (6, 3528408), (8, 2646306), (9, 2352272), (12, 1764204), (13, 1628496), (16, 1323153), (18, 1176136), (24, 882102), (26, 814248), (36, 588068), (39, 542832), (43, 492336), (48, 441051), (52, 407124), (72, 294034), (78, 271416), (86, 246168), (104, 203562), (117, 180944), (129, 164112), (144, 147017), (156, 135708), (172, 123084), (208, 101781), (234, 90472), (258, 82056), (263, 80496), (312, 67854), (344, 61542), (387, 54704), (468, 45236), (516, 41028), (526, 40248), (559, 37872), (624, 33927), (688, 30771), (774, 27352), (789, 26832), (936, 22618), (1032, 20514), (1052, 20124), (1118, 18936), (1548, 13676), (1578, 13416), (1677, 12624), (1872, 11309), (2064, 10257), (2104, 10062), (2236, 9468), (2367, 8944), (3096, 6838), (3156, 6708), (3354, 6312), (3419, 6192), (4208, 5031), (4472, 4734)]