21000655168

素因数分解:

$2^6\times {\mathrm{103}}^1\times {\mathrm{241}}^1\times {\mathrm{13219}}^1$

素因数の和:13575

約数の個数: 56

約数和(自身を含む): 42255561920

約数和(自身を除く): 21254906752

約数列:

[1, 2, 4, 8, 16, 32, 64, 103, 206, 241, 412, 482, 824, 964, 1648, 1928, 3296, 3856, 6592, 7712, 13219, 15424, 24823, 26438, 49646, 52876, 99292, 105752, 198584, 211504, 397168, 423008, 794336, 846016, 1361557, 1588672, 2723114, 3185779, 5446228, 6371558, 10892456, 12743116, 21784912, 25486232, 43569824, 50972464, 87139648, 101944928, 203889856, 328135237, 656270474, 1312540948, 2625081896, 5250163792, 10500327584, 21000655168]

約数ペア:

[(1, 21000655168), (2, 10500327584), (4, 5250163792), (8, 2625081896), (16, 1312540948), (32, 656270474), (64, 328135237), (103, 203889856), (206, 101944928), (241, 87139648), (412, 50972464), (482, 43569824), (824, 25486232), (964, 21784912), (1648, 12743116), (1928, 10892456), (3296, 6371558), (3856, 5446228), (6592, 3185779), (7712, 2723114), (13219, 1588672), (15424, 1361557), (24823, 846016), (26438, 794336), (49646, 423008), (52876, 397168), (99292, 211504), (105752, 198584)]