21815880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1327}}^1$

素因数の和:1478

約数の個数: 64

約数和(自身を含む): 65975040

約数和(自身を除く): 44159160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 137, 274, 411, 548, 685, 822, 1096, 1327, 1370, 1644, 2055, 2654, 2740, 3288, 3981, 4110, 5308, 5480, 6635, 7962, 8220, 10616, 13270, 15924, 16440, 19905, 26540, 31848, 39810, 53080, 79620, 159240, 181799, 363598, 545397, 727196, 908995, 1090794, 1454392, 1817990, 2181588, 2726985, 3635980, 4363176, 5453970, 7271960, 10907940, 21815880]

約数ペア:

[(1, 21815880), (2, 10907940), (3, 7271960), (4, 5453970), (5, 4363176), (6, 3635980), (8, 2726985), (10, 2181588), (12, 1817990), (15, 1454392), (20, 1090794), (24, 908995), (30, 727196), (40, 545397), (60, 363598), (120, 181799), (137, 159240), (274, 79620), (411, 53080), (548, 39810), (685, 31848), (822, 26540), (1096, 19905), (1327, 16440), (1370, 15924), (1644, 13270), (2055, 10616), (2654, 8220), (2740, 7962), (3288, 6635), (3981, 5480), (4110, 5308)]