21212135

素因数分解:

$5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{1831}}^1$

素因数の和:2174

約数の個数: 16

約数和(自身を含む): 29194752

約数和(自身を除く): 7982617

約数列:

[1, 5, 7, 35, 331, 1655, 1831, 2317, 9155, 11585, 12817, 64085, 606061, 3030305, 4242427, 21212135]

約数ペア:

[(1, 21212135), (5, 4242427), (7, 3030305), (35, 606061), (331, 64085), (1655, 12817), (1831, 11585), (2317, 9155)]