1211355

素因数分解:

$3^5\times 5^1\times {\mathrm{997}}^1$

素因数の和:1017

約数の個数: 24

約数和(自身を含む): 2179632

約数和(自身を除く): 968277

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 997, 1215, 2991, 4985, 8973, 14955, 26919, 44865, 80757, 134595, 242271, 403785, 1211355]

約数ペア:

[(1, 1211355), (3, 403785), (5, 242271), (9, 134595), (15, 80757), (27, 44865), (45, 26919), (81, 14955), (135, 8973), (243, 4985), (405, 2991), (997, 1215)]