21895269

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1259}}^1$

素因数の和:1321

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 12941211

約数列:

[1, 3, 11, 17, 31, 33, 51, 93, 187, 341, 527, 561, 1023, 1259, 1581, 3777, 5797, 13849, 17391, 21403, 39029, 41547, 64209, 117087, 235433, 429319, 663493, 706299, 1287957, 1990479, 7298423, 21895269]

約数ペア:

[(1, 21895269), (3, 7298423), (11, 1990479), (17, 1287957), (31, 706299), (33, 663493), (51, 429319), (93, 235433), (187, 117087), (341, 64209), (527, 41547), (561, 39029), (1023, 21403), (1259, 17391), (1581, 13849), (3777, 5797)]