21013126

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{607}}^1\times {\mathrm{911}}^1$

素因数の和:1539

約数の個数: 16

約数和(自身を含む): 33269760

約数和(自身を除く): 12256634

約数列:

[1, 2, 19, 38, 607, 911, 1214, 1822, 11533, 17309, 23066, 34618, 552977, 1105954, 10506563, 21013126]

約数ペア:

[(1, 21013126), (2, 10506563), (19, 1105954), (38, 552977), (607, 34618), (911, 23066), (1214, 17309), (1822, 11533)]