21591310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{541}}^1$

素因数の和:868

約数の個数: 32

約数和(自身を含む): 42067872

約数和(自身を除く): 20476562

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 307, 541, 614, 1082, 1535, 2705, 3070, 3991, 5410, 7033, 7982, 14066, 19955, 35165, 39910, 70330, 166087, 332174, 830435, 1660870, 2159131, 4318262, 10795655, 21591310]

約数ペア:

[(1, 21591310), (2, 10795655), (5, 4318262), (10, 2159131), (13, 1660870), (26, 830435), (65, 332174), (130, 166087), (307, 70330), (541, 39910), (614, 35165), (1082, 19955), (1535, 14066), (2705, 7982), (3070, 7033), (3991, 5410)]