650187

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{349}}^1$

素因数の和:384

約数の個数: 20

約数和(自身を含む): 1016400

約数和(自身を除く): 366213

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 349, 621, 1047, 1863, 3141, 8027, 9423, 24081, 28269, 72243, 216729, 650187]

約数ペア:

[(1, 650187), (3, 216729), (9, 72243), (23, 28269), (27, 24081), (69, 9423), (81, 8027), (207, 3141), (349, 1863), (621, 1047)]