21229348

素因数分解:

$2^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{1217}}^1$

素因数の和:1324

約数の個数: 36

約数和(自身を含む): 43738380

約数和(自身を除く): 22509032

約数列:

[1, 2, 4, 7, 14, 28, 49, 89, 98, 178, 196, 356, 623, 1217, 1246, 2434, 2492, 4361, 4868, 8519, 8722, 17038, 17444, 34076, 59633, 108313, 119266, 216626, 238532, 433252, 758191, 1516382, 3032764, 5307337, 10614674, 21229348]

約数ペア:

[(1, 21229348), (2, 10614674), (4, 5307337), (7, 3032764), (14, 1516382), (28, 758191), (49, 433252), (89, 238532), (98, 216626), (178, 119266), (196, 108313), (356, 59633), (623, 34076), (1217, 17444), (1246, 17038), (2434, 8722), (2492, 8519), (4361, 4868)]