21372273

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4937}}^1$

素因数の和:4993

約数の個数: 24

約数和(自身を含む): 34151208

約数和(自身を除く): 12778935

約数列:

[1, 3, 9, 13, 37, 39, 111, 117, 333, 481, 1443, 4329, 4937, 14811, 44433, 64181, 182669, 192543, 548007, 577629, 1644021, 2374697, 7124091, 21372273]

約数ペア:

[(1, 21372273), (3, 7124091), (9, 2374697), (13, 1644021), (37, 577629), (39, 548007), (111, 192543), (117, 182669), (333, 64181), (481, 44433), (1443, 14811), (4329, 4937)]