19960101

素因数分解:

$3^4\times 7^2\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:180

約数の個数: 60

約数和(自身を含む): 35754048

約数和(自身を除く): 15793947

約数列:

[1, 3, 7, 9, 21, 27, 47, 49, 63, 81, 107, 141, 147, 189, 321, 329, 423, 441, 567, 749, 963, 987, 1269, 1323, 2247, 2303, 2889, 2961, 3807, 3969, 5029, 5243, 6741, 6909, 8667, 8883, 15087, 15729, 20223, 20727, 26649, 35203, 45261, 47187, 60669, 62181, 105609, 135783, 141561, 186543, 246421, 316827, 407349, 424683, 739263, 950481, 2217789, 2851443, 6653367, 19960101]

約数ペア:

[(1, 19960101), (3, 6653367), (7, 2851443), (9, 2217789), (21, 950481), (27, 739263), (47, 424683), (49, 407349), (63, 316827), (81, 246421), (107, 186543), (141, 141561), (147, 135783), (189, 105609), (321, 62181), (329, 60669), (423, 47187), (441, 45261), (567, 35203), (749, 26649), (963, 20727), (987, 20223), (1269, 15729), (1323, 15087), (2247, 8883), (2303, 8667), (2889, 6909), (2961, 6741), (3807, 5243), (3969, 5029)]