21440554

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{47}}^2\times {\mathrm{211}}^1$

素因数の和:330

約数の個数: 24

約数和(自身を含む): 34450848

約数和(自身を除く): 13010294

約数列:

[1, 2, 23, 46, 47, 94, 211, 422, 1081, 2162, 2209, 4418, 4853, 9706, 9917, 19834, 50807, 101614, 228091, 456182, 466099, 932198, 10720277, 21440554]

約数ペア:

[(1, 21440554), (2, 10720277), (23, 932198), (46, 466099), (47, 456182), (94, 228091), (211, 101614), (422, 50807), (1081, 19834), (2162, 9917), (2209, 9706), (4418, 4853)]