21009100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{30013}}^1$

素因数の和:30034

約数の個数: 36

約数和(自身を含む): 52104304

約数和(自身を除く): 31095204

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 30013, 60026, 120052, 150065, 210091, 300130, 420182, 600260, 750325, 840364, 1050455, 1500650, 2100910, 3001300, 4201820, 5252275, 10504550, 21009100]

約数ペア:

[(1, 21009100), (2, 10504550), (4, 5252275), (5, 4201820), (7, 3001300), (10, 2100910), (14, 1500650), (20, 1050455), (25, 840364), (28, 750325), (35, 600260), (50, 420182), (70, 300130), (100, 210091), (140, 150065), (175, 120052), (350, 60026), (700, 30013)]