2981223

素因数分解:

$3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{599}}^1$

素因数の和:691

約数の個数: 24

約数和(自身を含む): 4992000

約数和(自身を除く): 2010777

約数列:

[1, 3, 7, 9, 21, 63, 79, 237, 553, 599, 711, 1659, 1797, 4193, 4977, 5391, 12579, 37737, 47321, 141963, 331247, 425889, 993741, 2981223]

約数ペア:

[(1, 2981223), (3, 993741), (7, 425889), (9, 331247), (21, 141963), (63, 47321), (79, 37737), (237, 12579), (553, 5391), (599, 4977), (711, 4193), (1659, 1797)]