21258772095

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{919}}^1\times {\mathrm{140197}}^1$

素因数の和:141135

約数の個数: 32

約数和(自身を含む): 37146862080

約数和(自身を除く): 15888089985

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 919, 2757, 4595, 10109, 13785, 30327, 50545, 140197, 151635, 420591, 700985, 1542167, 2102955, 4626501, 7710835, 23132505, 128841043, 386523129, 644205215, 1417251473, 1932615645, 4251754419, 7086257365, 21258772095]

約数ペア:

[(1, 21258772095), (3, 7086257365), (5, 4251754419), (11, 1932615645), (15, 1417251473), (33, 644205215), (55, 386523129), (165, 128841043), (919, 23132505), (2757, 7710835), (4595, 4626501), (10109, 2102955), (13785, 1542167), (30327, 700985), (50545, 420591), (140197, 151635)]