21462441

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1021}}^1$

素因数の和:1062

約数の個数: 48

約数和(自身を含む): 39146688

約数和(自身を除く): 17684247

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 49, 77, 91, 143, 147, 231, 273, 429, 539, 637, 1001, 1021, 1617, 1911, 3003, 3063, 7007, 7147, 11231, 13273, 21021, 21441, 33693, 39819, 50029, 78617, 92911, 146003, 150087, 235851, 278733, 438009, 550319, 650377, 1022021, 1650957, 1951131, 3066063, 7154147, 21462441]

約数ペア:

[(1, 21462441), (3, 7154147), (7, 3066063), (11, 1951131), (13, 1650957), (21, 1022021), (33, 650377), (39, 550319), (49, 438009), (77, 278733), (91, 235851), (143, 150087), (147, 146003), (231, 92911), (273, 78617), (429, 50029), (539, 39819), (637, 33693), (1001, 21441), (1021, 21021), (1617, 13273), (1911, 11231), (3003, 7147), (3063, 7007)]