21069792

素因数分解:

$2^5\times 3^2\times {\mathrm{149}}^1\times {\mathrm{491}}^1$

素因数の和:656

約数の個数: 72

約数和(自身を含む): 60442200

約数和(自身を除く): 39372408

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 149, 288, 298, 447, 491, 596, 894, 982, 1192, 1341, 1473, 1788, 1964, 2384, 2682, 2946, 3576, 3928, 4419, 4768, 5364, 5892, 7152, 7856, 8838, 10728, 11784, 14304, 15712, 17676, 21456, 23568, 35352, 42912, 47136, 70704, 73159, 141408, 146318, 219477, 292636, 438954, 585272, 658431, 877908, 1170544, 1316862, 1755816, 2341088, 2633724, 3511632, 5267448, 7023264, 10534896, 21069792]

約数ペア:

[(1, 21069792), (2, 10534896), (3, 7023264), (4, 5267448), (6, 3511632), (8, 2633724), (9, 2341088), (12, 1755816), (16, 1316862), (18, 1170544), (24, 877908), (32, 658431), (36, 585272), (48, 438954), (72, 292636), (96, 219477), (144, 146318), (149, 141408), (288, 73159), (298, 70704), (447, 47136), (491, 42912), (596, 35352), (894, 23568), (982, 21456), (1192, 17676), (1341, 15712), (1473, 14304), (1788, 11784), (1964, 10728), (2384, 8838), (2682, 7856), (2946, 7152), (3576, 5892), (3928, 5364), (4419, 4768)]