20998655

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{467}}^1$

素因数の和:535

約数の個数: 24

約数和(自身を含む): 27950832

約数和(自身を除く): 6952177

約数列:

[1, 5, 17, 23, 85, 115, 391, 467, 529, 1955, 2335, 2645, 7939, 8993, 10741, 39695, 44965, 53705, 182597, 247043, 912985, 1235215, 4199731, 20998655]

約数ペア:

[(1, 20998655), (5, 4199731), (17, 1235215), (23, 912985), (85, 247043), (115, 182597), (391, 53705), (467, 44965), (529, 39695), (1955, 10741), (2335, 8993), (2645, 7939)]