19640988

素因数分解:

$2^2\times 3^3\times {\mathrm{23}}^1\times {\mathrm{7907}}^1$

素因数の和:7943

約数の個数: 48

約数和(自身を含む): 53141760

約数和(自身を除く): 33500772

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 54, 69, 92, 108, 138, 207, 276, 414, 621, 828, 1242, 2484, 7907, 15814, 23721, 31628, 47442, 71163, 94884, 142326, 181861, 213489, 284652, 363722, 426978, 545583, 727444, 853956, 1091166, 1636749, 2182332, 3273498, 4910247, 6546996, 9820494, 19640988]

約数ペア:

[(1, 19640988), (2, 9820494), (3, 6546996), (4, 4910247), (6, 3273498), (9, 2182332), (12, 1636749), (18, 1091166), (23, 853956), (27, 727444), (36, 545583), (46, 426978), (54, 363722), (69, 284652), (92, 213489), (108, 181861), (138, 142326), (207, 94884), (276, 71163), (414, 47442), (621, 31628), (828, 23721), (1242, 15814), (2484, 7907)]