21989541

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{859}}^1$

素因数の和:945

約数の個数: 32

約数和(自身を含む): 35665920

約数和(自身を除く): 13676379

約数列:

[1, 3, 7, 21, 23, 53, 69, 159, 161, 371, 483, 859, 1113, 1219, 2577, 3657, 6013, 8533, 18039, 19757, 25599, 45527, 59271, 136581, 138299, 318689, 414897, 956067, 1047121, 3141363, 7329847, 21989541]

約数ペア:

[(1, 21989541), (3, 7329847), (7, 3141363), (21, 1047121), (23, 956067), (53, 414897), (69, 318689), (159, 138299), (161, 136581), (371, 59271), (483, 45527), (859, 25599), (1113, 19757), (1219, 18039), (2577, 8533), (3657, 6013)]