21602325

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{16943}}^1$

素因数の和:16973

約数の個数: 24

約数和(自身を含む): 37819008

約数和(自身を除く): 16216683

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 16943, 50829, 84715, 254145, 288031, 423575, 864093, 1270725, 1440155, 4320465, 7200775, 21602325]

約数ペア:

[(1, 21602325), (3, 7200775), (5, 4320465), (15, 1440155), (17, 1270725), (25, 864093), (51, 423575), (75, 288031), (85, 254145), (255, 84715), (425, 50829), (1275, 16943)]