20125773

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{269}}^1$

素因数の和:458

約数の個数: 32

約数和(自身を含む): 31881600

約数和(自身を除く): 11755827

約数列:

[1, 3, 9, 17, 27, 51, 153, 163, 269, 459, 489, 807, 1467, 2421, 2771, 4401, 4573, 7263, 8313, 13719, 24939, 41157, 43847, 74817, 123471, 131541, 394623, 745399, 1183869, 2236197, 6708591, 20125773]

約数ペア:

[(1, 20125773), (3, 6708591), (9, 2236197), (17, 1183869), (27, 745399), (51, 394623), (153, 131541), (163, 123471), (269, 74817), (459, 43847), (489, 41157), (807, 24939), (1467, 13719), (2421, 8313), (2771, 7263), (4401, 4573)]