21041860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{150299}}^1$

素因数の和:150315

約数の個数: 24

約数和(自身を含む): 50500800

約数和(自身を除く): 29458940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 150299, 300598, 601196, 751495, 1052093, 1502990, 2104186, 3005980, 4208372, 5260465, 10520930, 21041860]

約数ペア:

[(1, 21041860), (2, 10520930), (4, 5260465), (5, 4208372), (7, 3005980), (10, 2104186), (14, 1502990), (20, 1052093), (28, 751495), (35, 601196), (70, 300598), (140, 150299)]