21945825

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{8867}}^1$

素因数の和:8894

約数の個数: 36

約数和(自身を含む): 42885648

約数和(自身を除く): 20939823

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 165, 225, 275, 495, 825, 2475, 8867, 26601, 44335, 79803, 97537, 133005, 221675, 292611, 399015, 487685, 665025, 877833, 1463055, 1995075, 2438425, 4389165, 7315275, 21945825]

約数ペア:

[(1, 21945825), (3, 7315275), (5, 4389165), (9, 2438425), (11, 1995075), (15, 1463055), (25, 877833), (33, 665025), (45, 487685), (55, 399015), (75, 292611), (99, 221675), (165, 133005), (225, 97537), (275, 79803), (495, 44335), (825, 26601), (2475, 8867)]