21409850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:180

約数の個数: 96

約数和(自身を含む): 50996736

約数和(自身を除く): 29586886

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 67, 70, 77, 83, 110, 134, 154, 166, 175, 275, 335, 350, 385, 415, 469, 550, 581, 670, 737, 770, 830, 913, 938, 1162, 1474, 1675, 1826, 1925, 2075, 2345, 2905, 3350, 3685, 3850, 4150, 4565, 4690, 5159, 5561, 5810, 6391, 7370, 9130, 10318, 11122, 11725, 12782, 14525, 18425, 22825, 23450, 25795, 27805, 29050, 31955, 36850, 38927, 45650, 51590, 55610, 61171, 63910, 77854, 122342, 128975, 139025, 159775, 194635, 257950, 278050, 305855, 319550, 389270, 428197, 611710, 856394, 973175, 1529275, 1946350, 2140985, 3058550, 4281970, 10704925, 21409850]

約数ペア:

[(1, 21409850), (2, 10704925), (5, 4281970), (7, 3058550), (10, 2140985), (11, 1946350), (14, 1529275), (22, 973175), (25, 856394), (35, 611710), (50, 428197), (55, 389270), (67, 319550), (70, 305855), (77, 278050), (83, 257950), (110, 194635), (134, 159775), (154, 139025), (166, 128975), (175, 122342), (275, 77854), (335, 63910), (350, 61171), (385, 55610), (415, 51590), (469, 45650), (550, 38927), (581, 36850), (670, 31955), (737, 29050), (770, 27805), (830, 25795), (913, 23450), (938, 22825), (1162, 18425), (1474, 14525), (1675, 12782), (1826, 11725), (1925, 11122), (2075, 10318), (2345, 9130), (2905, 7370), (3350, 6391), (3685, 5810), (3850, 5561), (4150, 5159), (4565, 4690)]