20556987

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{4547}}^1$

素因数の和:4698

約数の個数: 16

約数和(自身を含む): 30125952

約数和(自身を除く): 9568965

約数列:

[1, 3, 11, 33, 137, 411, 1507, 4521, 4547, 13641, 50017, 150051, 622939, 1868817, 6852329, 20556987]

約数ペア:

[(1, 20556987), (3, 6852329), (11, 1868817), (33, 622939), (137, 150051), (411, 50017), (1507, 13641), (4521, 4547)]