21572880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12841}}^1$

素因数の和:12864

約数の個数: 80

約数和(自身を含む): 76435584

約数和(自身を除く): 54862704

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12841, 25682, 38523, 51364, 64205, 77046, 89887, 102728, 128410, 154092, 179774, 192615, 205456, 256820, 269661, 308184, 359548, 385230, 449435, 513640, 539322, 616368, 719096, 770460, 898870, 1027280, 1078644, 1348305, 1438192, 1540920, 1797740, 2157288, 2696610, 3081840, 3595480, 4314576, 5393220, 7190960, 10786440, 21572880]

約数ペア:

[(1, 21572880), (2, 10786440), (3, 7190960), (4, 5393220), (5, 4314576), (6, 3595480), (7, 3081840), (8, 2696610), (10, 2157288), (12, 1797740), (14, 1540920), (15, 1438192), (16, 1348305), (20, 1078644), (21, 1027280), (24, 898870), (28, 770460), (30, 719096), (35, 616368), (40, 539322), (42, 513640), (48, 449435), (56, 385230), (60, 359548), (70, 308184), (80, 269661), (84, 256820), (105, 205456), (112, 192615), (120, 179774), (140, 154092), (168, 128410), (210, 102728), (240, 89887), (280, 77046), (336, 64205), (420, 51364), (560, 38523), (840, 25682), (1680, 12841)]