21115860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{351931}}^1$

素因数の和:351943

約数の個数: 24

約数和(自身を含む): 59124576

約数和(自身を除く): 38008716

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 351931, 703862, 1055793, 1407724, 1759655, 2111586, 3519310, 4223172, 5278965, 7038620, 10557930, 21115860]

約数ペア:

[(1, 21115860), (2, 10557930), (3, 7038620), (4, 5278965), (5, 4223172), (6, 3519310), (10, 2111586), (12, 1759655), (15, 1407724), (20, 1055793), (30, 703862), (60, 351931)]