19828185

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4421}}^1$

素因数の和:4465

約数の個数: 32

約数和(自身を含む): 35659008

約数和(自身を除く): 15830823

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4421, 4485, 13263, 22105, 57473, 66315, 101683, 172419, 287365, 305049, 508415, 862095, 1321879, 1525245, 3965637, 6609395, 19828185]

約数ペア:

[(1, 19828185), (3, 6609395), (5, 3965637), (13, 1525245), (15, 1321879), (23, 862095), (39, 508415), (65, 305049), (69, 287365), (115, 172419), (195, 101683), (299, 66315), (345, 57473), (897, 22105), (1495, 13263), (4421, 4485)]