21330840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1193}}^1$

素因数の和:1356

約数の個数: 64

約数和(自身を含む): 64476000

約数和(自身を除く): 43145160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 149, 298, 447, 596, 745, 894, 1192, 1193, 1490, 1788, 2235, 2386, 2980, 3576, 3579, 4470, 4772, 5960, 5965, 7158, 8940, 9544, 11930, 14316, 17880, 17895, 23860, 28632, 35790, 47720, 71580, 143160, 177757, 355514, 533271, 711028, 888785, 1066542, 1422056, 1777570, 2133084, 2666355, 3555140, 4266168, 5332710, 7110280, 10665420, 21330840]

約数ペア:

[(1, 21330840), (2, 10665420), (3, 7110280), (4, 5332710), (5, 4266168), (6, 3555140), (8, 2666355), (10, 2133084), (12, 1777570), (15, 1422056), (20, 1066542), (24, 888785), (30, 711028), (40, 533271), (60, 355514), (120, 177757), (149, 143160), (298, 71580), (447, 47720), (596, 35790), (745, 28632), (894, 23860), (1192, 17895), (1193, 17880), (1490, 14316), (1788, 11930), (2235, 9544), (2386, 8940), (2980, 7158), (3576, 5965), (3579, 5960), (4470, 4772)]