521621373

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{146977}}^1$

素因数の和:147013

約数の個数: 24

約数和(自身を含む): 860703168

約数和(自身を除く): 339081795

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, 3549, 146977, 440931, 1028839, 1910701, 3086517, 5732103, 13374907, 24839113, 40124721, 74517339, 173873791, 521621373]

約数ペア:

[(1, 521621373), (3, 173873791), (7, 74517339), (13, 40124721), (21, 24839113), (39, 13374907), (91, 5732103), (169, 3086517), (273, 1910701), (507, 1028839), (1183, 440931), (3549, 146977)]