20121345

素因数分解:

$3^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1319}}^1$

素因数の和:1446

約数の個数: 32

約数和(自身を含む): 36115200

約数和(自身を除く): 15993855

約数列:

[1, 3, 5, 9, 15, 27, 45, 113, 135, 339, 565, 1017, 1319, 1695, 3051, 3957, 5085, 6595, 11871, 15255, 19785, 35613, 59355, 149047, 178065, 447141, 745235, 1341423, 2235705, 4024269, 6707115, 20121345]

約数ペア:

[(1, 20121345), (3, 6707115), (5, 4024269), (9, 2235705), (15, 1341423), (27, 745235), (45, 447141), (113, 178065), (135, 149047), (339, 59355), (565, 35613), (1017, 19785), (1319, 15255), (1695, 11871), (3051, 6595), (3957, 5085)]