21238272

素因数分解:

$2^9\times 3^2\times {\mathrm{11}}^1\times {\mathrm{419}}^1$

素因数の和:454

約数の個数: 120

約数和(自身を含む): 67026960

約数和(自身を除く): 45788688

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 64, 66, 72, 88, 96, 99, 128, 132, 144, 176, 192, 198, 256, 264, 288, 352, 384, 396, 419, 512, 528, 576, 704, 768, 792, 838, 1056, 1152, 1257, 1408, 1536, 1584, 1676, 2112, 2304, 2514, 2816, 3168, 3352, 3771, 4224, 4608, 4609, 5028, 5632, 6336, 6704, 7542, 8448, 9218, 10056, 12672, 13408, 13827, 15084, 16896, 18436, 20112, 25344, 26816, 27654, 30168, 36872, 40224, 41481, 50688, 53632, 55308, 60336, 73744, 80448, 82962, 107264, 110616, 120672, 147488, 160896, 165924, 214528, 221232, 241344, 294976, 321792, 331848, 442464, 482688, 589952, 643584, 663696, 884928, 965376, 1179904, 1327392, 1769856, 1930752, 2359808, 2654784, 3539712, 5309568, 7079424, 10619136, 21238272]

約数ペア:

[(1, 21238272), (2, 10619136), (3, 7079424), (4, 5309568), (6, 3539712), (8, 2654784), (9, 2359808), (11, 1930752), (12, 1769856), (16, 1327392), (18, 1179904), (22, 965376), (24, 884928), (32, 663696), (33, 643584), (36, 589952), (44, 482688), (48, 442464), (64, 331848), (66, 321792), (72, 294976), (88, 241344), (96, 221232), (99, 214528), (128, 165924), (132, 160896), (144, 147488), (176, 120672), (192, 110616), (198, 107264), (256, 82962), (264, 80448), (288, 73744), (352, 60336), (384, 55308), (396, 53632), (419, 50688), (512, 41481), (528, 40224), (576, 36872), (704, 30168), (768, 27654), (792, 26816), (838, 25344), (1056, 20112), (1152, 18436), (1257, 16896), (1408, 15084), (1536, 13827), (1584, 13408), (1676, 12672), (2112, 10056), (2304, 9218), (2514, 8448), (2816, 7542), (3168, 6704), (3352, 6336), (3771, 5632), (4224, 5028), (4608, 4609)]