21090428065

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{3023}}^1\times {\mathrm{3761}}^1$

素因数の和:6849

約数の個数: 32

約数和(自身を含む): 29487338496

約数和(自身を除く): 8396910431

約数列:

[1, 5, 7, 35, 53, 265, 371, 1855, 3023, 3761, 15115, 18805, 21161, 26327, 105805, 131635, 160219, 199333, 801095, 996665, 1121533, 1395331, 5607665, 6976655, 11369503, 56847515, 79586521, 397932605, 602583659, 3012918295, 4218085613, 21090428065]

約数ペア:

[(1, 21090428065), (5, 4218085613), (7, 3012918295), (35, 602583659), (53, 397932605), (265, 79586521), (371, 56847515), (1855, 11369503), (3023, 6976655), (3761, 5607665), (15115, 1395331), (18805, 1121533), (21161, 996665), (26327, 801095), (105805, 199333), (131635, 160219)]