20969238

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:189

約数の個数: 64

約数和(自身を含む): 46282752

約数和(自身を除く): 25313514

約数列:

[1, 2, 3, 6, 23, 46, 47, 53, 61, 69, 94, 106, 122, 138, 141, 159, 183, 282, 318, 366, 1081, 1219, 1403, 2162, 2438, 2491, 2806, 2867, 3233, 3243, 3657, 4209, 4982, 5734, 6466, 6486, 7314, 7473, 8418, 8601, 9699, 14946, 17202, 19398, 57293, 65941, 74359, 114586, 131882, 148718, 151951, 171879, 197823, 223077, 303902, 343758, 395646, 446154, 455853, 911706, 3494873, 6989746, 10484619, 20969238]

約数ペア:

[(1, 20969238), (2, 10484619), (3, 6989746), (6, 3494873), (23, 911706), (46, 455853), (47, 446154), (53, 395646), (61, 343758), (69, 303902), (94, 223077), (106, 197823), (122, 171879), (138, 151951), (141, 148718), (159, 131882), (183, 114586), (282, 74359), (318, 65941), (366, 57293), (1081, 19398), (1219, 17202), (1403, 14946), (2162, 9699), (2438, 8601), (2491, 8418), (2806, 7473), (2867, 7314), (3233, 6486), (3243, 6466), (3657, 5734), (4209, 4982)]