20381865

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{194113}}^1$

素因数の和:194128

約数の個数: 16

約数和(自身を含む): 37269888

約数和(自身を除く): 16888023

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 194113, 582339, 970565, 1358791, 2911695, 4076373, 6793955, 20381865]

約数ペア:

[(1, 20381865), (3, 6793955), (5, 4076373), (7, 2911695), (15, 1358791), (21, 970565), (35, 582339), (105, 194113)]