21257162

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:270

約数の個数: 32

約数和(自身を含む): 34809600

約数和(自身を除く): 13552438

約数列:

[1, 2, 19, 38, 73, 79, 97, 146, 158, 194, 1387, 1501, 1843, 2774, 3002, 3686, 5767, 7081, 7663, 11534, 14162, 15326, 109573, 134539, 145597, 219146, 269078, 291194, 559399, 1118798, 10628581, 21257162]

約数ペア:

[(1, 21257162), (2, 10628581), (19, 1118798), (38, 559399), (73, 291194), (79, 269078), (97, 219146), (146, 145597), (158, 134539), (194, 109573), (1387, 15326), (1501, 14162), (1843, 11534), (2774, 7663), (3002, 7081), (3686, 5767)]