724690071

素因数分解:

$3^4\times 7^1\times {\mathrm{1278113}}^1$

素因数の和:1278132

約数の個数: 20

約数和(自身を含む): 1237214352

約数和(自身を除く): 512524281

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 1278113, 3834339, 8946791, 11503017, 26840373, 34509051, 80521119, 103527153, 241563357, 724690071]

約数ペア:

[(1, 724690071), (3, 241563357), (7, 103527153), (9, 80521119), (21, 34509051), (27, 26840373), (63, 11503017), (81, 8946791), (189, 3834339), (567, 1278113)]