19651378

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{977}}^1$

素因数の和:1181

約数の個数: 16

約数和(自身を含む): 30102840

約数和(自身を除く): 10451462

約数列:

[1, 2, 89, 113, 178, 226, 977, 1954, 10057, 20114, 86953, 110401, 173906, 220802, 9825689, 19651378]

約数ペア:

[(1, 19651378), (2, 9825689), (89, 220802), (113, 173906), (178, 110401), (226, 86953), (977, 20114), (1954, 10057)]