20529561

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{347}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 31102848

約数和(自身を除く): 10573287

約数列:

[1, 3, 13, 37, 39, 41, 111, 123, 347, 481, 533, 1041, 1443, 1517, 1599, 4511, 4551, 12839, 13533, 14227, 19721, 38517, 42681, 59163, 166907, 184951, 500721, 526399, 554853, 1579197, 6843187, 20529561]

約数ペア:

[(1, 20529561), (3, 6843187), (13, 1579197), (37, 554853), (39, 526399), (41, 500721), (111, 184951), (123, 166907), (347, 59163), (481, 42681), (533, 38517), (1041, 19721), (1443, 14227), (1517, 13533), (1599, 12839), (4511, 4551)]