20161788843

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{714881}}^1$

素因数の和:714987

約数の個数: 32

約数和(自身を含む): 32941762560

約数和(自身を除く): 12779973717

約数列:

[1, 3, 7, 17, 21, 51, 79, 119, 237, 357, 553, 1343, 1659, 4029, 9401, 28203, 714881, 2144643, 5004167, 12152977, 15012501, 36458931, 56475599, 85070839, 169426797, 255212517, 395329193, 960085183, 1185987579, 2880255549, 6720596281, 20161788843]

約数ペア:

[(1, 20161788843), (3, 6720596281), (7, 2880255549), (17, 1185987579), (21, 960085183), (51, 395329193), (79, 255212517), (119, 169426797), (237, 85070839), (357, 56475599), (553, 36458931), (1343, 15012501), (1659, 12152977), (4029, 5004167), (9401, 2144643), (28203, 714881)]