21507369

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{23977}}^1$

素因数の和:24016

約数の個数: 16

約数和(自身を含む): 32226432

約数和(自身を除く): 10719063

約数列:

[1, 3, 13, 23, 39, 69, 299, 897, 23977, 71931, 311701, 551471, 935103, 1654413, 7169123, 21507369]

約数ペア:

[(1, 21507369), (3, 7169123), (13, 1654413), (23, 935103), (39, 551471), (69, 311701), (299, 71931), (897, 23977)]