21416841

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{659}}^1$

素因数の和:845

約数の個数: 24

約数和(自身を含む): 32535360

約数和(自身を除く): 11118519

約数列:

[1, 3, 9, 23, 69, 157, 207, 471, 659, 1413, 1977, 3611, 5931, 10833, 15157, 32499, 45471, 103463, 136413, 310389, 931167, 2379649, 7138947, 21416841]

約数ペア:

[(1, 21416841), (3, 7138947), (9, 2379649), (23, 931167), (69, 310389), (157, 136413), (207, 103463), (471, 45471), (659, 32499), (1413, 15157), (1977, 10833), (3611, 5931)]