21606189

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:361

約数の個数: 32

約数和(自身を含む): 32970240

約数和(自身を除く): 11364051

約数列:

[1, 3, 11, 29, 33, 87, 107, 211, 319, 321, 633, 957, 1177, 2321, 3103, 3531, 6119, 6963, 9309, 18357, 22577, 34133, 67309, 67731, 102399, 201927, 248347, 654733, 745041, 1964199, 7202063, 21606189]

約数ペア:

[(1, 21606189), (3, 7202063), (11, 1964199), (29, 745041), (33, 654733), (87, 248347), (107, 201927), (211, 102399), (319, 67731), (321, 67309), (633, 34133), (957, 22577), (1177, 18357), (2321, 9309), (3103, 6963), (3531, 6119)]