1221561

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{457}}^1$

素因数の和:483

約数の個数: 24

約数和(自身を含む): 2000544

約数和(自身を除く): 778983

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 243, 297, 457, 891, 1371, 2673, 4113, 5027, 12339, 15081, 37017, 45243, 111051, 135729, 407187, 1221561]

約数ペア:

[(1, 1221561), (3, 407187), (9, 135729), (11, 111051), (27, 45243), (33, 37017), (81, 15081), (99, 12339), (243, 5027), (297, 4113), (457, 2673), (891, 1371)]