21000971082

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{193283}}^1$

素因数の和:193507

約数の個数: 64

約数和(自身を含む): 51954739200

約数和(自身を除く): 30953768118

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 199, 273, 398, 546, 597, 1194, 1393, 2587, 2786, 4179, 5174, 7761, 8358, 15522, 18109, 36218, 54327, 108654, 193283, 386566, 579849, 1159698, 1352981, 2512679, 2705962, 4058943, 5025358, 7538037, 8117886, 15076074, 17588753, 35177506, 38463317, 52766259, 76926634, 105532518, 115389951, 230779902, 269243219, 500023121, 538486438, 807729657, 1000046242, 1500069363, 1615459314, 3000138726, 3500161847, 7000323694, 10500485541, 21000971082]

約数ペア:

[(1, 21000971082), (2, 10500485541), (3, 7000323694), (6, 3500161847), (7, 3000138726), (13, 1615459314), (14, 1500069363), (21, 1000046242), (26, 807729657), (39, 538486438), (42, 500023121), (78, 269243219), (91, 230779902), (182, 115389951), (199, 105532518), (273, 76926634), (398, 52766259), (546, 38463317), (597, 35177506), (1194, 17588753), (1393, 15076074), (2587, 8117886), (2786, 7538037), (4179, 5025358), (5174, 4058943), (7761, 2705962), (8358, 2512679), (15522, 1352981), (18109, 1159698), (36218, 579849), (54327, 386566), (108654, 193283)]