20045223

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{233}}^1$

素因数の和:340

約数の個数: 36

約数和(自身を含む): 32366880

約数和(自身を除く): 12321657

約数列:

[1, 3, 9, 11, 33, 79, 99, 121, 233, 237, 363, 699, 711, 869, 1089, 2097, 2563, 2607, 7689, 7821, 9559, 18407, 23067, 28193, 28677, 55221, 84579, 86031, 165663, 202477, 253737, 607431, 1822293, 2227247, 6681741, 20045223]

約数ペア:

[(1, 20045223), (3, 6681741), (9, 2227247), (11, 1822293), (33, 607431), (79, 253737), (99, 202477), (121, 165663), (233, 86031), (237, 84579), (363, 55221), (699, 28677), (711, 28193), (869, 23067), (1089, 18407), (2097, 9559), (2563, 7821), (2607, 7689)]