21577029

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{607}}^1$

素因数の和:685

約数の個数: 24

約数和(自身を含む): 31358208

約数和(自身を除く): 9781179

約数列:

[1, 3, 17, 41, 51, 123, 289, 607, 697, 867, 1821, 2091, 10319, 11849, 24887, 30957, 35547, 74661, 175423, 423079, 526269, 1269237, 7192343, 21577029]

約数ペア:

[(1, 21577029), (3, 7192343), (17, 1269237), (41, 526269), (51, 423079), (123, 175423), (289, 74661), (607, 35547), (697, 30957), (867, 24887), (1821, 11849), (2091, 10319)]