280517223

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{9521}}^1$

素因数の和:9615

約数の個数: 32

約数和(自身を含む): 453399552

約数和(自身を除く): 172882329

約数列:

[1, 3, 7, 21, 23, 61, 69, 161, 183, 427, 483, 1281, 1403, 4209, 9521, 9821, 28563, 29463, 66647, 199941, 218983, 580781, 656949, 1532881, 1742343, 4065467, 4598643, 12196401, 13357963, 40073889, 93505741, 280517223]

約数ペア:

[(1, 280517223), (3, 93505741), (7, 40073889), (21, 13357963), (23, 12196401), (61, 4598643), (69, 4065467), (161, 1742343), (183, 1532881), (427, 656949), (483, 580781), (1281, 218983), (1403, 199941), (4209, 66647), (9521, 29463), (9821, 28563)]