21856271

素因数分解:

${\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{619}}^1$

素因数の和:734

約数の個数: 16

約数和(自身を含む): 24284160

約数和(自身を除く): 2427889

約数列:

[1, 17, 31, 67, 527, 619, 1139, 2077, 10523, 19189, 35309, 41473, 326213, 705041, 1285663, 21856271]

約数ペア:

[(1, 21856271), (17, 1285663), (31, 705041), (67, 326213), (527, 41473), (619, 35309), (1139, 19189), (2077, 10523)]