18925221

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{4153}}^1$

素因数の和:4201

約数の個数: 24

約数和(自身を含む): 30307584

約数和(自身を除く): 11382363

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4153, 4557, 12459, 29071, 87213, 128743, 203497, 386229, 610491, 901201, 2703603, 6308407, 18925221]

約数ペア:

[(1, 18925221), (3, 6308407), (7, 2703603), (21, 901201), (31, 610491), (49, 386229), (93, 203497), (147, 128743), (217, 87213), (651, 29071), (1519, 12459), (4153, 4557)]