21214550

素因数分解:

$2^1\times 5^2\times 7^3\times {\mathrm{1237}}^1$

素因数の和:1270

約数の個数: 48

約数和(自身を含む): 46053600

約数和(自身を除く): 24839050

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 175, 245, 343, 350, 490, 686, 1225, 1237, 1715, 2450, 2474, 3430, 6185, 8575, 8659, 12370, 17150, 17318, 30925, 43295, 60613, 61850, 86590, 121226, 216475, 303065, 424291, 432950, 606130, 848582, 1515325, 2121455, 3030650, 4242910, 10607275, 21214550]

約数ペア:

[(1, 21214550), (2, 10607275), (5, 4242910), (7, 3030650), (10, 2121455), (14, 1515325), (25, 848582), (35, 606130), (49, 432950), (50, 424291), (70, 303065), (98, 216475), (175, 121226), (245, 86590), (343, 61850), (350, 60613), (490, 43295), (686, 30925), (1225, 17318), (1237, 17150), (1715, 12370), (2450, 8659), (2474, 8575), (3430, 6185)]