947983905

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{212791}}^1$

素因数の和:212819

約数の個数: 40

約数和(自身を含む): 1853843904

約数和(自身を除く): 905859999

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 297, 405, 495, 891, 1485, 4455, 212791, 638373, 1063955, 1915119, 2340701, 3191865, 5745357, 7022103, 9575595, 11703505, 17236071, 21066309, 28726785, 35110515, 63198927, 86180355, 105331545, 189596781, 315994635, 947983905]

約数ペア:

[(1, 947983905), (3, 315994635), (5, 189596781), (9, 105331545), (11, 86180355), (15, 63198927), (27, 35110515), (33, 28726785), (45, 21066309), (55, 17236071), (81, 11703505), (99, 9575595), (135, 7022103), (165, 5745357), (297, 3191865), (405, 2340701), (495, 1915119), (891, 1063955), (1485, 638373), (4455, 212791)]