21000688272

素因数分解:

$2^4\times 3^2\times {\mathrm{293}}^1\times {\mathrm{497741}}^1$

素因数の和:498048

約数の個数: 60

約数和(自身を含む): 58973467644

約数和(自身を除く): 37972779372

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 293, 586, 879, 1172, 1758, 2344, 2637, 3516, 4688, 5274, 7032, 10548, 14064, 21096, 42192, 497741, 995482, 1493223, 1990964, 2986446, 3981928, 4479669, 5972892, 7963856, 8959338, 11945784, 17918676, 23891568, 35837352, 71674704, 145838113, 291676226, 437514339, 583352452, 875028678, 1166704904, 1312543017, 1750057356, 2333409808, 2625086034, 3500114712, 5250172068, 7000229424, 10500344136, 21000688272]

約数ペア:

[(1, 21000688272), (2, 10500344136), (3, 7000229424), (4, 5250172068), (6, 3500114712), (8, 2625086034), (9, 2333409808), (12, 1750057356), (16, 1312543017), (18, 1166704904), (24, 875028678), (36, 583352452), (48, 437514339), (72, 291676226), (144, 145838113), (293, 71674704), (586, 35837352), (879, 23891568), (1172, 17918676), (1758, 11945784), (2344, 8959338), (2637, 7963856), (3516, 5972892), (4688, 4479669), (5274, 3981928), (7032, 2986446), (10548, 1990964), (14064, 1493223), (21096, 995482), (42192, 497741)]