19899801

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{271}}^1$

素因数の和:517

約数の個数: 24

約数和(自身を含む): 29702400

約数和(自身を除く): 9802599

約数列:

[1, 3, 9, 41, 123, 199, 271, 369, 597, 813, 1791, 2439, 8159, 11111, 24477, 33333, 53929, 73431, 99999, 161787, 485361, 2211089, 6633267, 19899801]

約数ペア:

[(1, 19899801), (3, 6633267), (9, 2211089), (41, 485361), (123, 161787), (199, 99999), (271, 73431), (369, 53929), (597, 33333), (813, 24477), (1791, 11111), (2439, 8159)]