21578102

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2237}}^1$

素因数の和:2312

約数の個数: 32

約数和(自身を含む): 40606272

約数和(自身を除く): 19028170

約数列:

[1, 2, 7, 13, 14, 26, 53, 91, 106, 182, 371, 689, 742, 1378, 2237, 4474, 4823, 9646, 15659, 29081, 31318, 58162, 118561, 203567, 237122, 407134, 829927, 1541293, 1659854, 3082586, 10789051, 21578102]

約数ペア:

[(1, 21578102), (2, 10789051), (7, 3082586), (13, 1659854), (14, 1541293), (26, 829927), (53, 407134), (91, 237122), (106, 203567), (182, 118561), (371, 58162), (689, 31318), (742, 29081), (1378, 15659), (2237, 9646), (4474, 4823)]