21001245

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{29789}}^1$

素因数の和:29844

約数の個数: 16

約数和(自身を含む): 34318080

約数和(自身を除く): 13316835

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 29789, 89367, 148945, 446835, 1400083, 4200249, 7000415, 21001245]

約数ペア:

[(1, 21001245), (3, 7000415), (5, 4200249), (15, 1400083), (47, 446835), (141, 148945), (235, 89367), (705, 29789)]