21235284

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{3121}}^1$

素因数の和:3147

約数の個数: 72

約数和(自身を含む): 63638848

約数和(自身を除く): 42403564

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 162, 189, 243, 252, 324, 378, 486, 567, 756, 972, 1134, 1701, 2268, 3121, 3402, 6242, 6804, 9363, 12484, 18726, 21847, 28089, 37452, 43694, 56178, 65541, 84267, 87388, 112356, 131082, 168534, 196623, 252801, 262164, 337068, 393246, 505602, 589869, 758403, 786492, 1011204, 1179738, 1516806, 1769607, 2359476, 3033612, 3539214, 5308821, 7078428, 10617642, 21235284]

約数ペア:

[(1, 21235284), (2, 10617642), (3, 7078428), (4, 5308821), (6, 3539214), (7, 3033612), (9, 2359476), (12, 1769607), (14, 1516806), (18, 1179738), (21, 1011204), (27, 786492), (28, 758403), (36, 589869), (42, 505602), (54, 393246), (63, 337068), (81, 262164), (84, 252801), (108, 196623), (126, 168534), (162, 131082), (189, 112356), (243, 87388), (252, 84267), (324, 65541), (378, 56178), (486, 43694), (567, 37452), (756, 28089), (972, 21847), (1134, 18726), (1701, 12484), (2268, 9363), (3121, 6804), (3402, 6242)]