21155340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{352589}}^1$

素因数の和:352601

約数の個数: 24

約数和(自身を含む): 59235120

約数和(自身を除く): 38079780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 352589, 705178, 1057767, 1410356, 1762945, 2115534, 3525890, 4231068, 5288835, 7051780, 10577670, 21155340]

約数ペア:

[(1, 21155340), (2, 10577670), (3, 7051780), (4, 5288835), (5, 4231068), (6, 3525890), (10, 2115534), (12, 1762945), (15, 1410356), (20, 1057767), (30, 705178), (60, 352589)]