19820490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{660683}}^1$

素因数の和:660693

約数の個数: 16

約数和(自身を含む): 47569248

約数和(自身を除く): 27748758

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 660683, 1321366, 1982049, 3303415, 3964098, 6606830, 9910245, 19820490]

約数ペア:

[(1, 19820490), (2, 9910245), (3, 6606830), (5, 3964098), (6, 3303415), (10, 1982049), (15, 1321366), (30, 660683)]