21496419

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{4111}}^1$

素因数の和:4207

約数の個数: 24

約数和(自身を含む): 35922432

約数和(自身を除く): 14426013

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 4111, 5229, 12333, 28777, 36999, 86331, 258993, 341213, 1023639, 2388491, 3070917, 7165473, 21496419]

約数ペア:

[(1, 21496419), (3, 7165473), (7, 3070917), (9, 2388491), (21, 1023639), (63, 341213), (83, 258993), (249, 86331), (581, 36999), (747, 28777), (1743, 12333), (4111, 5229)]