127978227

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^2\times {\mathrm{47}}^1$

素因数の和:157

約数の個数: 72

約数和(自身を含む): 221247936

約数和(自身を除く): 93269709

約数列:

[1, 3, 9, 13, 17, 37, 39, 47, 51, 111, 117, 141, 153, 221, 333, 423, 481, 611, 629, 663, 799, 1369, 1443, 1739, 1833, 1887, 1989, 2397, 4107, 4329, 5217, 5499, 5661, 7191, 8177, 10387, 12321, 15651, 17797, 22607, 23273, 24531, 29563, 31161, 53391, 64343, 67821, 69819, 73593, 88689, 93483, 160173, 193029, 203463, 209457, 266067, 302549, 384319, 579087, 836459, 907647, 1093831, 1152957, 2509377, 2722941, 3281493, 3458871, 7528131, 9844479, 14219803, 42659409, 127978227]

約数ペア:

[(1, 127978227), (3, 42659409), (9, 14219803), (13, 9844479), (17, 7528131), (37, 3458871), (39, 3281493), (47, 2722941), (51, 2509377), (111, 1152957), (117, 1093831), (141, 907647), (153, 836459), (221, 579087), (333, 384319), (423, 302549), (481, 266067), (611, 209457), (629, 203463), (663, 193029), (799, 160173), (1369, 93483), (1443, 88689), (1739, 73593), (1833, 69819), (1887, 67821), (1989, 64343), (2397, 53391), (4107, 31161), (4329, 29563), (5217, 24531), (5499, 23273), (5661, 22607), (7191, 17797), (8177, 15651), (10387, 12321)]