21666288

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{64483}}^1$

素因数の和:64501

約数の個数: 40

約数和(自身を含む): 63968128

約数和(自身を除く): 42301840

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 64483, 128966, 193449, 257932, 386898, 451381, 515864, 773796, 902762, 1031728, 1354143, 1547592, 1805524, 2708286, 3095184, 3611048, 5416572, 7222096, 10833144, 21666288]

約数ペア:

[(1, 21666288), (2, 10833144), (3, 7222096), (4, 5416572), (6, 3611048), (7, 3095184), (8, 2708286), (12, 1805524), (14, 1547592), (16, 1354143), (21, 1031728), (24, 902762), (28, 773796), (42, 515864), (48, 451381), (56, 386898), (84, 257932), (112, 193449), (168, 128966), (336, 64483)]