20945568

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{439}}^1$

素因数の和:530

約数の個数: 96

約数和(自身を含む): 63866880

約数和(自身を除く): 42921312

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 71, 84, 96, 112, 142, 168, 213, 224, 284, 336, 426, 439, 497, 568, 672, 852, 878, 994, 1136, 1317, 1491, 1704, 1756, 1988, 2272, 2634, 2982, 3073, 3408, 3512, 3976, 5268, 5964, 6146, 6816, 7024, 7952, 9219, 10536, 11928, 12292, 14048, 15904, 18438, 21072, 23856, 24584, 31169, 36876, 42144, 47712, 49168, 62338, 73752, 93507, 98336, 124676, 147504, 187014, 218183, 249352, 295008, 374028, 436366, 498704, 654549, 748056, 872732, 997408, 1309098, 1496112, 1745464, 2618196, 2992224, 3490928, 5236392, 6981856, 10472784, 20945568]

約数ペア:

[(1, 20945568), (2, 10472784), (3, 6981856), (4, 5236392), (6, 3490928), (7, 2992224), (8, 2618196), (12, 1745464), (14, 1496112), (16, 1309098), (21, 997408), (24, 872732), (28, 748056), (32, 654549), (42, 498704), (48, 436366), (56, 374028), (71, 295008), (84, 249352), (96, 218183), (112, 187014), (142, 147504), (168, 124676), (213, 98336), (224, 93507), (284, 73752), (336, 62338), (426, 49168), (439, 47712), (497, 42144), (568, 36876), (672, 31169), (852, 24584), (878, 23856), (994, 21072), (1136, 18438), (1317, 15904), (1491, 14048), (1704, 12292), (1756, 11928), (1988, 10536), (2272, 9219), (2634, 7952), (2982, 7024), (3073, 6816), (3408, 6146), (3512, 5964), (3976, 5268)]