18895863

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{293}}^1$

素因数の和:423

約数の個数: 32

約数和(自身を含む): 30030336

約数和(自身を除く): 11134473

約数列:

[1, 3, 7, 21, 37, 83, 111, 249, 259, 293, 581, 777, 879, 1743, 2051, 3071, 6153, 9213, 10841, 21497, 24319, 32523, 64491, 72957, 75887, 170233, 227661, 510699, 899803, 2699409, 6298621, 18895863]

約数ペア:

[(1, 18895863), (3, 6298621), (7, 2699409), (21, 899803), (37, 510699), (83, 227661), (111, 170233), (249, 75887), (259, 72957), (293, 64491), (581, 32523), (777, 24319), (879, 21497), (1743, 10841), (2051, 9213), (3071, 6153)]