201789189

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2963}}^1$

素因数の和:3046

約数の個数: 48

約数和(自身を含む): 355110912

約数和(自身を除く): 153321723

約数列:

[1, 3, 7, 9, 21, 23, 47, 63, 69, 141, 161, 207, 329, 423, 483, 987, 1081, 1449, 2961, 2963, 3243, 7567, 8889, 9729, 20741, 22701, 26667, 62223, 68103, 68149, 139261, 186669, 204447, 417783, 477043, 613341, 974827, 1253349, 1431129, 2924481, 3203003, 4293387, 8773443, 9609009, 22421021, 28827027, 67263063, 201789189]

約数ペア:

[(1, 201789189), (3, 67263063), (7, 28827027), (9, 22421021), (21, 9609009), (23, 8773443), (47, 4293387), (63, 3203003), (69, 2924481), (141, 1431129), (161, 1253349), (207, 974827), (329, 613341), (423, 477043), (483, 417783), (987, 204447), (1081, 186669), (1449, 139261), (2961, 68149), (2963, 68103), (3243, 62223), (7567, 26667), (8889, 22701), (9729, 20741)]