20545281

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{349}}^1$

素因数の和:597

約数の個数: 24

約数和(自身を含む): 30867200

約数和(自身を除く): 10321919

約数列:

[1, 3, 9, 31, 93, 211, 279, 349, 633, 1047, 1899, 3141, 6541, 10819, 19623, 32457, 58869, 73639, 97371, 220917, 662751, 2282809, 6848427, 20545281]

約数ペア:

[(1, 20545281), (3, 6848427), (9, 2282809), (31, 662751), (93, 220917), (211, 97371), (279, 73639), (349, 58869), (633, 32457), (1047, 19623), (1899, 10819), (3141, 6541)]