21689910

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:203

約数の個数: 128

約数和(自身を含む): 64627200

約数和(自身を除く): 42937290

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 45, 54, 55, 66, 67, 90, 99, 109, 110, 134, 135, 165, 198, 201, 218, 270, 297, 327, 330, 335, 402, 495, 545, 594, 603, 654, 670, 737, 981, 990, 1005, 1090, 1199, 1206, 1474, 1485, 1635, 1809, 1962, 2010, 2211, 2398, 2943, 2970, 3015, 3270, 3597, 3618, 3685, 4422, 4905, 5886, 5995, 6030, 6633, 7194, 7303, 7370, 9045, 9810, 10791, 11055, 11990, 13266, 14606, 14715, 17985, 18090, 19899, 21582, 21909, 22110, 29430, 32373, 33165, 35970, 36515, 39798, 43818, 53955, 64746, 65727, 66330, 73030, 80333, 99495, 107910, 109545, 131454, 160666, 161865, 197181, 198990, 219090, 240999, 323730, 328635, 394362, 401665, 481998, 657270, 722997, 803330, 985905, 1204995, 1445994, 1971810, 2168991, 2409990, 3614985, 4337982, 7229970, 10844955, 21689910]

約数ペア:

[(1, 21689910), (2, 10844955), (3, 7229970), (5, 4337982), (6, 3614985), (9, 2409990), (10, 2168991), (11, 1971810), (15, 1445994), (18, 1204995), (22, 985905), (27, 803330), (30, 722997), (33, 657270), (45, 481998), (54, 401665), (55, 394362), (66, 328635), (67, 323730), (90, 240999), (99, 219090), (109, 198990), (110, 197181), (134, 161865), (135, 160666), (165, 131454), (198, 109545), (201, 107910), (218, 99495), (270, 80333), (297, 73030), (327, 66330), (330, 65727), (335, 64746), (402, 53955), (495, 43818), (545, 39798), (594, 36515), (603, 35970), (654, 33165), (670, 32373), (737, 29430), (981, 22110), (990, 21909), (1005, 21582), (1090, 19899), (1199, 18090), (1206, 17985), (1474, 14715), (1485, 14606), (1635, 13266), (1809, 11990), (1962, 11055), (2010, 10791), (2211, 9810), (2398, 9045), (2943, 7370), (2970, 7303), (3015, 7194), (3270, 6633), (3597, 6030), (3618, 5995), (3685, 5886), (4422, 4905)]