21367731

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{397}}^1$

素因数の和:651

約数の個数: 32

約数和(自身を含む): 35762688

約数和(自身を除く): 14394957

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 233, 397, 699, 1191, 1631, 2563, 2779, 4367, 4893, 7689, 8337, 13101, 17941, 30569, 53823, 91707, 92501, 277503, 647507, 1017511, 1942521, 3052533, 7122577, 21367731]

約数ペア:

[(1, 21367731), (3, 7122577), (7, 3052533), (11, 1942521), (21, 1017511), (33, 647507), (77, 277503), (231, 92501), (233, 91707), (397, 53823), (699, 30569), (1191, 17941), (1631, 13101), (2563, 8337), (2779, 7689), (4367, 4893)]