21000000568

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{2203}}^1\times {\mathrm{15083}}^1$

素因数の和:17371

約数の個数: 32

約数和(自身を含む): 39894163200

約数和(自身を除く): 18894162632

約数列:

[1, 2, 4, 8, 79, 158, 316, 632, 2203, 4406, 8812, 15083, 17624, 30166, 60332, 120664, 174037, 348074, 696148, 1191557, 1392296, 2383114, 4766228, 9532456, 33227849, 66455698, 132911396, 265822792, 2625000071, 5250000142, 10500000284, 21000000568]

約数ペア:

[(1, 21000000568), (2, 10500000284), (4, 5250000142), (8, 2625000071), (79, 265822792), (158, 132911396), (316, 66455698), (632, 33227849), (2203, 9532456), (4406, 4766228), (8812, 2383114), (15083, 1392296), (17624, 1191557), (30166, 696148), (60332, 348074), (120664, 174037)]