28921425

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29663}}^1$

素因数の和:29689

約数の個数: 24

約数和(自身を含む): 51496704

約数和(自身を除く): 22575279

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 29663, 88989, 148315, 385619, 444945, 741575, 1156857, 1928095, 2224725, 5784285, 9640475, 28921425]

約数ペア:

[(1, 28921425), (3, 9640475), (5, 5784285), (13, 2224725), (15, 1928095), (25, 1156857), (39, 741575), (65, 444945), (75, 385619), (195, 148315), (325, 88989), (975, 29663)]