19890138

素因数分解:

$2^1\times 3^1\times {\mathrm{353}}^1\times {\mathrm{9391}}^1$

素因数の和:9749

約数の個数: 16

約数和(自身を含む): 39897216

約数和(自身を除く): 20007078

約数列:

[1, 2, 3, 6, 353, 706, 1059, 2118, 9391, 18782, 28173, 56346, 3315023, 6630046, 9945069, 19890138]

約数ペア:

[(1, 19890138), (2, 9945069), (3, 6630046), (6, 3315023), (353, 56346), (706, 28173), (1059, 18782), (2118, 9391)]