28021511

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1\times {\mathrm{619}}^1$

素因数の和:878

約数の個数: 16

約数和(自身を含む): 33331200

約数和(自身を除く): 5309689

約数列:

[1, 7, 29, 203, 223, 619, 1561, 4333, 6467, 17951, 45269, 125657, 138037, 966259, 4003073, 28021511]

約数ペア:

[(1, 28021511), (7, 4003073), (29, 966259), (203, 138037), (223, 125657), (619, 45269), (1561, 17951), (4333, 6467)]