21531904

素因数分解:

$2^8\times {\mathrm{241}}^1\times {\mathrm{349}}^1$

素因数の和:606

約数の個数: 36

約数和(自身を含む): 43281700

約数和(自身を除く): 21749796

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 241, 256, 349, 482, 698, 964, 1396, 1928, 2792, 3856, 5584, 7712, 11168, 15424, 22336, 30848, 44672, 61696, 84109, 89344, 168218, 336436, 672872, 1345744, 2691488, 5382976, 10765952, 21531904]

約数ペア:

[(1, 21531904), (2, 10765952), (4, 5382976), (8, 2691488), (16, 1345744), (32, 672872), (64, 336436), (128, 168218), (241, 89344), (256, 84109), (349, 61696), (482, 44672), (698, 30848), (964, 22336), (1396, 15424), (1928, 11168), (2792, 7712), (3856, 5584)]