21147695

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{307}}^1\times {\mathrm{599}}^1$

素因数の和:934

約数の個数: 16

約数和(自身を含む): 26611200

約数和(自身を除く): 5463505

約数列:

[1, 5, 23, 115, 307, 599, 1535, 2995, 7061, 13777, 35305, 68885, 183893, 919465, 4229539, 21147695]

約数ペア:

[(1, 21147695), (5, 4229539), (23, 919465), (115, 183893), (307, 68885), (599, 35305), (1535, 13777), (2995, 7061)]