20197632021

素因数分解:

$3^1\times 7^1\times {\mathrm{37507}}^1\times {\mathrm{25643}}^1$

素因数の和:63160

約数の個数: 16

約数和(自身を含む): 30779364864

約数和(自身を除く): 10581732843

約数列:

[1, 3, 7, 21, 25643, 37507, 76929, 112521, 179501, 262549, 538503, 787647, 961792001, 2885376003, 6732544007, 20197632021]

約数ペア:

[(1, 20197632021), (3, 6732544007), (7, 2885376003), (21, 961792001), (25643, 787647), (37507, 538503), (76929, 262549), (112521, 179501)]