20195721

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{24659}}^1$

素因数の和:24685

約数の個数: 24

約数和(自身を含む): 35904960

約数和(自身を除く): 15709239

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 24659, 73977, 172613, 221931, 320567, 517839, 961701, 1553517, 2243969, 2885103, 6731907, 20195721]

約数ペア:

[(1, 20195721), (3, 6731907), (7, 2885103), (9, 2243969), (13, 1553517), (21, 961701), (39, 517839), (63, 320567), (91, 221931), (117, 172613), (273, 73977), (819, 24659)]