20176245

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10427}}^1$

素因数の和:10481

約数の個数: 24

約数和(自身を含む): 35788896

約数和(自身を除く): 15612651

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 10427, 31281, 52135, 93843, 156405, 448361, 469215, 1345083, 2241805, 4035249, 6725415, 20176245]

約数ペア:

[(1, 20176245), (3, 6725415), (5, 4035249), (9, 2241805), (15, 1345083), (43, 469215), (45, 448361), (129, 156405), (215, 93843), (387, 52135), (645, 31281), (1935, 10427)]