18999648

素因数分解:

$2^5\times 3^2\times {\mathrm{37}}^1\times {\mathrm{1783}}^1$

素因数の和:1836

約数の個数: 72

約数和(自身を含む): 55521648

約数和(自身を除く): 36522000

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 37, 48, 72, 74, 96, 111, 144, 148, 222, 288, 296, 333, 444, 592, 666, 888, 1184, 1332, 1776, 1783, 2664, 3552, 3566, 5328, 5349, 7132, 10656, 10698, 14264, 16047, 21396, 28528, 32094, 42792, 57056, 64188, 65971, 85584, 128376, 131942, 171168, 197913, 256752, 263884, 395826, 513504, 527768, 593739, 791652, 1055536, 1187478, 1583304, 2111072, 2374956, 3166608, 4749912, 6333216, 9499824, 18999648]

約数ペア:

[(1, 18999648), (2, 9499824), (3, 6333216), (4, 4749912), (6, 3166608), (8, 2374956), (9, 2111072), (12, 1583304), (16, 1187478), (18, 1055536), (24, 791652), (32, 593739), (36, 527768), (37, 513504), (48, 395826), (72, 263884), (74, 256752), (96, 197913), (111, 171168), (144, 131942), (148, 128376), (222, 85584), (288, 65971), (296, 64188), (333, 57056), (444, 42792), (592, 32094), (666, 28528), (888, 21396), (1184, 16047), (1332, 14264), (1776, 10698), (1783, 10656), (2664, 7132), (3552, 5349), (3566, 5328)]