21054435

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{1669}}^1$

素因数の和:1735

約数の個数: 24

約数和(自身を含む): 34909680

約数和(自身を除く): 13855245

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 841, 1669, 2523, 4205, 5007, 8345, 12615, 25035, 48401, 145203, 242005, 726015, 1403629, 4210887, 7018145, 21054435]

約数ペア:

[(1, 21054435), (3, 7018145), (5, 4210887), (15, 1403629), (29, 726015), (87, 242005), (145, 145203), (435, 48401), (841, 25035), (1669, 12615), (2523, 8345), (4205, 5007)]