20451699

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{617}}^1$

素因数の和:779

約数の個数: 24

約数和(自身を含む): 30850560

約数和(自身を除く): 10398861

約数列:

[1, 3, 9, 29, 87, 127, 261, 381, 617, 1143, 1851, 3683, 5553, 11049, 17893, 33147, 53679, 78359, 161037, 235077, 705231, 2272411, 6817233, 20451699]

約数ペア:

[(1, 20451699), (3, 6817233), (9, 2272411), (29, 705231), (87, 235077), (127, 161037), (261, 78359), (381, 53679), (617, 33147), (1143, 17893), (1851, 11049), (3683, 5553)]