19969912

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{131381}}^1$

素因数の和:131406

約数の個数: 16

約数和(自身を含む): 39414600

約数和(自身を除く): 19444688

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 131381, 262762, 525524, 1051048, 2496239, 4992478, 9984956, 19969912]

約数ペア:

[(1, 19969912), (2, 9984956), (4, 4992478), (8, 2496239), (19, 1051048), (38, 525524), (76, 262762), (152, 131381)]