21215642

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{17027}}^1$

素因数の和:17125

約数の個数: 16

約数和(自身を含む): 36780480

約数和(自身を除く): 15564838

約数列:

[1, 2, 7, 14, 89, 178, 623, 1246, 17027, 34054, 119189, 238378, 1515403, 3030806, 10607821, 21215642]

約数ペア:

[(1, 21215642), (2, 10607821), (7, 3030806), (14, 1515403), (89, 238378), (178, 119189), (623, 34054), (1246, 17027)]