20017791

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{373}}^1$

素因数の和:535

約数の個数: 24

約数和(自身を含む): 29755440

約数和(自身を除く): 9737649

約数列:

[1, 3, 9, 67, 89, 201, 267, 373, 603, 801, 1119, 3357, 5963, 17889, 24991, 33197, 53667, 74973, 99591, 224919, 298773, 2224199, 6672597, 20017791]

約数ペア:

[(1, 20017791), (3, 6672597), (9, 2224199), (67, 298773), (89, 224919), (201, 99591), (267, 74973), (373, 53667), (603, 33197), (801, 24991), (1119, 17889), (3357, 5963)]