19959105

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{2699}}^1$

素因数の和:2753

約数の個数: 32

約数和(自身を含む): 34992000

約数和(自身を除く): 15032895

約数列:

[1, 3, 5, 15, 17, 29, 51, 85, 87, 145, 255, 435, 493, 1479, 2465, 2699, 7395, 8097, 13495, 40485, 45883, 78271, 137649, 229415, 234813, 391355, 688245, 1174065, 1330607, 3991821, 6653035, 19959105]

約数ペア:

[(1, 19959105), (3, 6653035), (5, 3991821), (15, 1330607), (17, 1174065), (29, 688245), (51, 391355), (85, 234813), (87, 229415), (145, 137649), (255, 78271), (435, 45883), (493, 40485), (1479, 13495), (2465, 8097), (2699, 7395)]