20213325

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{8167}}^1$

素因数の和:8194

約数の個数: 36

約数和(自身を含む): 39500448

約数和(自身を除く): 19287123

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 165, 225, 275, 495, 825, 2475, 8167, 24501, 40835, 73503, 89837, 122505, 204175, 269511, 367515, 449185, 612525, 808533, 1347555, 1837575, 2245925, 4042665, 6737775, 20213325]

約数ペア:

[(1, 20213325), (3, 6737775), (5, 4042665), (9, 2245925), (11, 1837575), (15, 1347555), (25, 808533), (33, 612525), (45, 449185), (55, 367515), (75, 269511), (99, 204175), (165, 122505), (225, 89837), (275, 73503), (495, 40835), (825, 24501), (2475, 8167)]