21000547696

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{3533}}^1\times {\mathrm{19553}}^1$

素因数の和:23113

約数の個数: 40

約数和(自身を含む): 42844378320

約数和(自身を除く): 21843830624

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 3533, 7066, 14132, 19553, 28264, 39106, 56528, 67127, 78212, 134254, 156424, 268508, 312848, 371507, 537016, 743014, 1074032, 1486028, 2972056, 5944112, 69080749, 138161498, 276322996, 552645992, 1105291984, 1312534231, 2625068462, 5250136924, 10500273848, 21000547696]

約数ペア:

[(1, 21000547696), (2, 10500273848), (4, 5250136924), (8, 2625068462), (16, 1312534231), (19, 1105291984), (38, 552645992), (76, 276322996), (152, 138161498), (304, 69080749), (3533, 5944112), (7066, 2972056), (14132, 1486028), (19553, 1074032), (28264, 743014), (39106, 537016), (56528, 371507), (67127, 312848), (78212, 268508), (134254, 156424)]