21254060

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{20051}}^1$

素因数の和:20113

約数の個数: 24

約数和(自身を含む): 45477936

約数和(自身を除く): 24223876

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 20051, 40102, 80204, 100255, 200510, 401020, 1062703, 2125406, 4250812, 5313515, 10627030, 21254060]

約数ペア:

[(1, 21254060), (2, 10627030), (4, 5313515), (5, 4250812), (10, 2125406), (20, 1062703), (53, 401020), (106, 200510), (212, 100255), (265, 80204), (530, 40102), (1060, 20051)]