20976138

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{16889}}^1$

素因数の和:16923

約数の個数: 32

約数和(自身を含む): 48643200

約数和(自身を除く): 27667062

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 138, 207, 414, 621, 1242, 16889, 33778, 50667, 101334, 152001, 304002, 388447, 456003, 776894, 912006, 1165341, 2330682, 3496023, 6992046, 10488069, 20976138]

約数ペア:

[(1, 20976138), (2, 10488069), (3, 6992046), (6, 3496023), (9, 2330682), (18, 1165341), (23, 912006), (27, 776894), (46, 456003), (54, 388447), (69, 304002), (138, 152001), (207, 101334), (414, 50667), (621, 33778), (1242, 16889)]