19339257

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{487}}^1$

素因数の和:589

約数の個数: 32

約数和(自身を含む): 30982144

約数和(自身を除く): 11642887

約数列:

[1, 3, 7, 21, 31, 61, 93, 183, 217, 427, 487, 651, 1281, 1461, 1891, 3409, 5673, 10227, 13237, 15097, 29707, 39711, 45291, 89121, 105679, 207949, 317037, 623847, 920917, 2762751, 6446419, 19339257]

約数ペア:

[(1, 19339257), (3, 6446419), (7, 2762751), (21, 920917), (31, 623847), (61, 317037), (93, 207949), (183, 105679), (217, 89121), (427, 45291), (487, 39711), (651, 29707), (1281, 15097), (1461, 13237), (1891, 10227), (3409, 5673)]