21189384

素因数分解:

$2^3\times 3^3\times {\mathrm{263}}^1\times {\mathrm{373}}^1$

素因数の和:651

約数の個数: 64

約数和(自身を含む): 59241600

約数和(自身を除く): 38052216

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 263, 373, 526, 746, 789, 1052, 1119, 1492, 1578, 2104, 2238, 2367, 2984, 3156, 3357, 4476, 4734, 6312, 6714, 7101, 8952, 9468, 10071, 13428, 14202, 18936, 20142, 26856, 28404, 40284, 56808, 80568, 98099, 196198, 294297, 392396, 588594, 784792, 882891, 1177188, 1765782, 2354376, 2648673, 3531564, 5297346, 7063128, 10594692, 21189384]

約数ペア:

[(1, 21189384), (2, 10594692), (3, 7063128), (4, 5297346), (6, 3531564), (8, 2648673), (9, 2354376), (12, 1765782), (18, 1177188), (24, 882891), (27, 784792), (36, 588594), (54, 392396), (72, 294297), (108, 196198), (216, 98099), (263, 80568), (373, 56808), (526, 40284), (746, 28404), (789, 26856), (1052, 20142), (1119, 18936), (1492, 14202), (1578, 13428), (2104, 10071), (2238, 9468), (2367, 8952), (2984, 7101), (3156, 6714), (3357, 6312), (4476, 4734)]