20016783

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{599}}^1$

素因数の和:731

約数の個数: 24

約数和(自身を含む): 29952000

約数和(自身を除く): 9935217

約数列:

[1, 3, 9, 47, 79, 141, 237, 423, 599, 711, 1797, 3713, 5391, 11139, 28153, 33417, 47321, 84459, 141963, 253377, 425889, 2224087, 6672261, 20016783]

約数ペア:

[(1, 20016783), (3, 6672261), (9, 2224087), (47, 425889), (79, 253377), (141, 141963), (237, 84459), (423, 47321), (599, 33417), (711, 28153), (1797, 11139), (3713, 5391)]