21728096

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2749}}^1$

素因数の和:2791

約数の個数: 48

約数和(自身を含む): 48510000

約数和(自身を除く): 26781904

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 76, 104, 152, 208, 247, 304, 416, 494, 608, 988, 1976, 2749, 3952, 5498, 7904, 10996, 21992, 35737, 43984, 52231, 71474, 87968, 104462, 142948, 208924, 285896, 417848, 571792, 679003, 835696, 1143584, 1358006, 1671392, 2716012, 5432024, 10864048, 21728096]

約数ペア:

[(1, 21728096), (2, 10864048), (4, 5432024), (8, 2716012), (13, 1671392), (16, 1358006), (19, 1143584), (26, 835696), (32, 679003), (38, 571792), (52, 417848), (76, 285896), (104, 208924), (152, 142948), (208, 104462), (247, 87968), (304, 71474), (416, 52231), (494, 43984), (608, 35737), (988, 21992), (1976, 10996), (2749, 7904), (3952, 5498)]