420409791

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{307}}^1\times {\mathrm{757}}^1$

素因数の和:1140

約数の個数: 32

約数和(自身を含む): 635022080

約数和(自身を除く): 214612289

約数列:

[1, 3, 9, 27, 67, 201, 307, 603, 757, 921, 1809, 2271, 2763, 6813, 8289, 20439, 20569, 50719, 61707, 152157, 185121, 232399, 456471, 555363, 697197, 1369413, 2091591, 6274773, 15570733, 46712199, 140136597, 420409791]

約数ペア:

[(1, 420409791), (3, 140136597), (9, 46712199), (27, 15570733), (67, 6274773), (201, 2091591), (307, 1369413), (603, 697197), (757, 555363), (921, 456471), (1809, 232399), (2271, 185121), (2763, 152157), (6813, 61707), (8289, 50719), (20439, 20569)]