21699420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{503}}^1\times {\mathrm{719}}^1$

素因数の和:1234

約数の個数: 48

約数和(自身を含む): 60963840

約数和(自身を除く): 39264420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 503, 719, 1006, 1438, 1509, 2012, 2157, 2515, 2876, 3018, 3595, 4314, 5030, 6036, 7190, 7545, 8628, 10060, 10785, 14380, 15090, 21570, 30180, 43140, 361657, 723314, 1084971, 1446628, 1808285, 2169942, 3616570, 4339884, 5424855, 7233140, 10849710, 21699420]

約数ペア:

[(1, 21699420), (2, 10849710), (3, 7233140), (4, 5424855), (5, 4339884), (6, 3616570), (10, 2169942), (12, 1808285), (15, 1446628), (20, 1084971), (30, 723314), (60, 361657), (503, 43140), (719, 30180), (1006, 21570), (1438, 15090), (1509, 14380), (2012, 10785), (2157, 10060), (2515, 8628), (2876, 7545), (3018, 7190), (3595, 6036), (4314, 5030)]