21078170

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{49019}}^1$

素因数の和:49069

約数の個数: 16

約数和(自身を含む): 38823840

約数和(自身を除く): 17745670

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 49019, 98038, 245095, 490190, 2107817, 4215634, 10539085, 21078170]

約数ペア:

[(1, 21078170), (2, 10539085), (5, 4215634), (10, 2107817), (43, 490190), (86, 245095), (215, 98038), (430, 49019)]