21968580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1303}}^1$

素因数の和:1596

約数の個数: 48

約数和(自身を含む): 61778304

約数和(自身を除く): 39809724

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 281, 562, 843, 1124, 1303, 1405, 1686, 2606, 2810, 3372, 3909, 4215, 5212, 5620, 6515, 7818, 8430, 13030, 15636, 16860, 19545, 26060, 39090, 78180, 366143, 732286, 1098429, 1464572, 1830715, 2196858, 3661430, 4393716, 5492145, 7322860, 10984290, 21968580]

約数ペア:

[(1, 21968580), (2, 10984290), (3, 7322860), (4, 5492145), (5, 4393716), (6, 3661430), (10, 2196858), (12, 1830715), (15, 1464572), (20, 1098429), (30, 732286), (60, 366143), (281, 78180), (562, 39090), (843, 26060), (1124, 19545), (1303, 16860), (1405, 15636), (1686, 13030), (2606, 8430), (2810, 7818), (3372, 6515), (3909, 5620), (4215, 5212)]