168721839

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:613

約数の個数: 64

約数和(自身を含む): 297561600

約数和(自身を除く): 128839761

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 89, 99, 117, 143, 267, 297, 351, 429, 491, 801, 979, 1157, 1287, 1473, 2403, 2937, 3471, 3861, 4419, 5401, 6383, 8811, 10413, 12727, 13257, 16203, 19149, 26433, 31239, 38181, 43699, 48609, 57447, 70213, 114543, 131097, 145827, 172341, 210639, 343629, 393291, 480689, 568087, 631917, 1179873, 1442067, 1704261, 1895751, 4326201, 5112783, 6248957, 12978603, 15338349, 18746871, 56240613, 168721839]

約数ペア:

[(1, 168721839), (3, 56240613), (9, 18746871), (11, 15338349), (13, 12978603), (27, 6248957), (33, 5112783), (39, 4326201), (89, 1895751), (99, 1704261), (117, 1442067), (143, 1179873), (267, 631917), (297, 568087), (351, 480689), (429, 393291), (491, 343629), (801, 210639), (979, 172341), (1157, 145827), (1287, 131097), (1473, 114543), (2403, 70213), (2937, 57447), (3471, 48609), (3861, 43699), (4419, 38181), (5401, 31239), (6383, 26433), (8811, 19149), (10413, 16203), (12727, 13257)]