21942369

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{503}}^1$

素因数の和:677

約数の個数: 24

約数和(自身を含む): 32864832

約数和(自身を除く): 10922463

約数列:

[1, 3, 9, 37, 111, 131, 333, 393, 503, 1179, 1509, 4527, 4847, 14541, 18611, 43623, 55833, 65893, 167499, 197679, 593037, 2438041, 7314123, 21942369]

約数ペア:

[(1, 21942369), (3, 7314123), (9, 2438041), (37, 593037), (111, 197679), (131, 167499), (333, 65893), (393, 55833), (503, 43623), (1179, 18611), (1509, 14541), (4527, 4847)]