21241479

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{487}}^1$

素因数の和:595

約数の個数: 32

約数和(自身を含む): 33980416

約数和(自身を除く): 12738937

約数列:

[1, 3, 7, 21, 31, 67, 93, 201, 217, 469, 487, 651, 1407, 1461, 2077, 3409, 6231, 10227, 14539, 15097, 32629, 43617, 45291, 97887, 105679, 228403, 317037, 685209, 1011499, 3034497, 7080493, 21241479]

約数ペア:

[(1, 21241479), (3, 7080493), (7, 3034497), (21, 1011499), (31, 685209), (67, 317037), (93, 228403), (201, 105679), (217, 97887), (469, 45291), (487, 43617), (651, 32629), (1407, 15097), (1461, 14539), (2077, 10227), (3409, 6231)]