21396591

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1283}}^1$

素因数の和:1415

約数の個数: 24

約数和(自身を含む): 33050160

約数和(自身を除く): 11653569

約数列:

[1, 3, 9, 17, 51, 109, 153, 327, 981, 1283, 1853, 3849, 5559, 11547, 16677, 21811, 65433, 139847, 196299, 419541, 1258623, 2377399, 7132197, 21396591]

約数ペア:

[(1, 21396591), (3, 7132197), (9, 2377399), (17, 1258623), (51, 419541), (109, 196299), (153, 139847), (327, 65433), (981, 21811), (1283, 16677), (1853, 11547), (3849, 5559)]