28531293

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3109}}^1$

素因数の和:3161

約数の個数: 32

約数和(自身を含む): 47769600

約数和(自身を除く): 19238307

約数列:

[1, 3, 7, 19, 21, 23, 57, 69, 133, 161, 399, 437, 483, 1311, 3059, 3109, 9177, 9327, 21763, 59071, 65289, 71507, 177213, 214521, 413497, 500549, 1240491, 1358633, 1501647, 4075899, 9510431, 28531293]

約数ペア:

[(1, 28531293), (3, 9510431), (7, 4075899), (19, 1501647), (21, 1358633), (23, 1240491), (57, 500549), (69, 413497), (133, 214521), (161, 177213), (399, 71507), (437, 65289), (483, 59071), (1311, 21763), (3059, 9327), (3109, 9177)]