21401799

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 31256064

約数和(自身を除く): 9854265

約数列:

[1, 3, 23, 37, 69, 83, 101, 111, 249, 303, 851, 1909, 2323, 2553, 3071, 3737, 5727, 6969, 8383, 9213, 11211, 25149, 70633, 85951, 192809, 211899, 257853, 310171, 578427, 930513, 7133933, 21401799]

約数ペア:

[(1, 21401799), (3, 7133933), (23, 930513), (37, 578427), (69, 310171), (83, 257853), (101, 211899), (111, 192809), (249, 85951), (303, 70633), (851, 25149), (1909, 11211), (2323, 9213), (2553, 8383), (3071, 6969), (3737, 5727)]