21171351747

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{11078677}}^1$

素因数の和:11078707

約数の個数: 24

約数和(自身を含む): 35363140176

約数和(自身を除く): 14191788429

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 11078677, 33236031, 77550739, 144022801, 232652217, 432068403, 542855173, 1008159607, 1628565519, 3024478821, 7057117249, 21171351747]

約数ペア:

[(1, 21171351747), (3, 7057117249), (7, 3024478821), (13, 1628565519), (21, 1008159607), (39, 542855173), (49, 432068403), (91, 232652217), (147, 144022801), (273, 77550739), (637, 33236031), (1911, 11078677)]