19929219

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 29346624

約数和(自身を除く): 9417405

約数列:

[1, 3, 17, 51, 53, 73, 101, 159, 219, 303, 901, 1241, 1717, 2703, 3723, 3869, 5151, 5353, 7373, 11607, 16059, 22119, 65773, 91001, 125341, 197319, 273003, 376023, 390769, 1172307, 6643073, 19929219]

約数ペア:

[(1, 19929219), (3, 6643073), (17, 1172307), (51, 390769), (53, 376023), (73, 273003), (101, 197319), (159, 125341), (219, 91001), (303, 65773), (901, 22119), (1241, 16059), (1717, 11607), (2703, 7373), (3723, 5353), (3869, 5151)]