21210560

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{557}}^1$

素因数の和:598

約数の個数: 112

約数和(自身を含む): 61228224

約数和(自身を除く): 40017664

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 64, 68, 70, 80, 85, 112, 119, 136, 140, 160, 170, 224, 238, 272, 280, 320, 340, 448, 476, 544, 557, 560, 595, 680, 952, 1088, 1114, 1120, 1190, 1360, 1904, 2228, 2240, 2380, 2720, 2785, 3808, 3899, 4456, 4760, 5440, 5570, 7616, 7798, 8912, 9469, 9520, 11140, 15596, 17824, 18938, 19040, 19495, 22280, 31192, 35648, 37876, 38080, 38990, 44560, 47345, 62384, 66283, 75752, 77980, 89120, 94690, 124768, 132566, 151504, 155960, 178240, 189380, 249536, 265132, 303008, 311920, 331415, 378760, 530264, 606016, 623840, 662830, 757520, 1060528, 1247680, 1325660, 1515040, 2121056, 2651320, 3030080, 4242112, 5302640, 10605280, 21210560]

約数ペア:

[(1, 21210560), (2, 10605280), (4, 5302640), (5, 4242112), (7, 3030080), (8, 2651320), (10, 2121056), (14, 1515040), (16, 1325660), (17, 1247680), (20, 1060528), (28, 757520), (32, 662830), (34, 623840), (35, 606016), (40, 530264), (56, 378760), (64, 331415), (68, 311920), (70, 303008), (80, 265132), (85, 249536), (112, 189380), (119, 178240), (136, 155960), (140, 151504), (160, 132566), (170, 124768), (224, 94690), (238, 89120), (272, 77980), (280, 75752), (320, 66283), (340, 62384), (448, 47345), (476, 44560), (544, 38990), (557, 38080), (560, 37876), (595, 35648), (680, 31192), (952, 22280), (1088, 19495), (1114, 19040), (1120, 18938), (1190, 17824), (1360, 15596), (1904, 11140), (2228, 9520), (2240, 9469), (2380, 8912), (2720, 7798), (2785, 7616), (3808, 5570), (3899, 5440), (4456, 4760)]