12905865

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{1951}}^1$

素因数の和:1979

約数の個数: 48

約数和(自身を含む): 26703360

約数和(自身を除く): 13797495

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 135, 147, 189, 245, 315, 441, 735, 945, 1323, 1951, 2205, 5853, 6615, 9755, 13657, 17559, 29265, 40971, 52677, 68285, 87795, 95599, 122913, 204855, 263385, 286797, 368739, 477995, 614565, 860391, 1433985, 1843695, 2581173, 4301955, 12905865]

約数ペア:

[(1, 12905865), (3, 4301955), (5, 2581173), (7, 1843695), (9, 1433985), (15, 860391), (21, 614565), (27, 477995), (35, 368739), (45, 286797), (49, 263385), (63, 204855), (105, 122913), (135, 95599), (147, 87795), (189, 68285), (245, 52677), (315, 40971), (441, 29265), (735, 17559), (945, 13657), (1323, 9755), (1951, 6615), (2205, 5853)]