388331391

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{29399}}^1$

素因数の和:29463

約数の個数: 32

約数和(自身を含む): 643507200

約数和(自身を除く): 255175809

約数列:

[1, 3, 7, 17, 21, 37, 51, 111, 119, 259, 357, 629, 777, 1887, 4403, 13209, 29399, 88197, 205793, 499783, 617379, 1087763, 1499349, 3263289, 3498481, 7614341, 10495443, 18491971, 22843023, 55475913, 129443797, 388331391]

約数ペア:

[(1, 388331391), (3, 129443797), (7, 55475913), (17, 22843023), (21, 18491971), (37, 10495443), (51, 7614341), (111, 3498481), (119, 3263289), (259, 1499349), (357, 1087763), (629, 617379), (777, 499783), (1887, 205793), (4403, 88197), (13209, 29399)]