21171434

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{4253}}^1$

素因数の和:4405

約数の個数: 16

約数和(自身を含む): 33691680

約数和(自身を除く): 12520246

約数列:

[1, 2, 19, 38, 131, 262, 2489, 4253, 4978, 8506, 80807, 161614, 557143, 1114286, 10585717, 21171434]

約数ペア:

[(1, 21171434), (2, 10585717), (19, 1114286), (38, 557143), (131, 161614), (262, 80807), (2489, 8506), (4253, 4978)]