20121201

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1759}}^1$

素因数の和:1837

約数の個数: 24

約数和(自身を含む): 30750720

約数和(自身を除く): 10629519

約数列:

[1, 3, 9, 31, 41, 93, 123, 279, 369, 1271, 1759, 3813, 5277, 11439, 15831, 54529, 72119, 163587, 216357, 490761, 649071, 2235689, 6707067, 20121201]

約数ペア:

[(1, 20121201), (3, 6707067), (9, 2235689), (31, 649071), (41, 490761), (93, 216357), (123, 163587), (279, 72119), (369, 54529), (1271, 15831), (1759, 11439), (3813, 5277)]