20465775

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{8269}}^1$

素因数の和:8296

約数の個数: 36

約数和(自身を含む): 39993720

約数和(自身を除く): 19527945

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 165, 225, 275, 495, 825, 2475, 8269, 24807, 41345, 74421, 90959, 124035, 206725, 272877, 372105, 454795, 620175, 818631, 1364385, 1860525, 2273975, 4093155, 6821925, 20465775]

約数ペア:

[(1, 20465775), (3, 6821925), (5, 4093155), (9, 2273975), (11, 1860525), (15, 1364385), (25, 818631), (33, 620175), (45, 454795), (55, 372105), (75, 272877), (99, 206725), (165, 124035), (225, 90959), (275, 74421), (495, 41345), (825, 24807), (2475, 8269)]