21938391

素因数分解:

$3^3\times {\mathrm{571}}^1\times {\mathrm{1423}}^1$

素因数の和:2003

約数の個数: 16

約数和(自身を含む): 32581120

約数和(自身を除く): 10642729

約数列:

[1, 3, 9, 27, 571, 1423, 1713, 4269, 5139, 12807, 15417, 38421, 812533, 2437599, 7312797, 21938391]

約数ペア:

[(1, 21938391), (3, 7312797), (9, 2437599), (27, 812533), (571, 38421), (1423, 15417), (1713, 12807), (4269, 5139)]