2139775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:303

約数の個数: 24

約数和(自身を含む): 2999808

約数和(自身を除く): 860033

約数列:

[1, 5, 11, 25, 31, 55, 155, 251, 275, 341, 775, 1255, 1705, 2761, 6275, 7781, 8525, 13805, 38905, 69025, 85591, 194525, 427955, 2139775]

約数ペア:

[(1, 2139775), (5, 427955), (11, 194525), (25, 85591), (31, 69025), (55, 38905), (155, 13805), (251, 8525), (275, 7781), (341, 6275), (775, 2761), (1255, 1705)]