21000658245

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{200006269}}^1$

素因数の和:200006284

約数の個数: 16

約数和(自身を含む): 38401203840

約数和(自身を除く): 17400545595

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 200006269, 600018807, 1000031345, 1400043883, 3000094035, 4200131649, 7000219415, 21000658245]

約数ペア:

[(1, 21000658245), (3, 7000219415), (5, 4200131649), (7, 3000094035), (15, 1400043883), (21, 1000031345), (35, 600018807), (105, 200006269)]