21120966

素因数分解:

$2^1\times 3^3\times {\mathrm{79}}^1\times {\mathrm{4951}}^1$

素因数の和:5041

約数の個数: 32

約数和(自身を含む): 47539200

約数和(自身を除く): 26418234

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 79, 158, 237, 474, 711, 1422, 2133, 4266, 4951, 9902, 14853, 29706, 44559, 89118, 133677, 267354, 391129, 782258, 1173387, 2346774, 3520161, 7040322, 10560483, 21120966]

約数ペア:

[(1, 21120966), (2, 10560483), (3, 7040322), (6, 3520161), (9, 2346774), (18, 1173387), (27, 782258), (54, 391129), (79, 267354), (158, 133677), (237, 89118), (474, 44559), (711, 29706), (1422, 14853), (2133, 9902), (4266, 4951)]