217902015

素因数分解:

$3^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{8111}}^1$

素因数の和:8324

約数の個数: 32

約数和(自身を含む): 389376000

約数和(自身を除く): 171473985

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 199, 597, 995, 1791, 2985, 5373, 8111, 8955, 24333, 26865, 40555, 72999, 121665, 218997, 364995, 1094985, 1614089, 4842267, 8070445, 14526801, 24211335, 43580403, 72634005, 217902015]

約数ペア:

[(1, 217902015), (3, 72634005), (5, 43580403), (9, 24211335), (15, 14526801), (27, 8070445), (45, 4842267), (135, 1614089), (199, 1094985), (597, 364995), (995, 218997), (1791, 121665), (2985, 72999), (5373, 40555), (8111, 26865), (8955, 24333)]