21326520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7727}}^1$

素因数の和:7764

約数の個数: 64

約数和(自身を含む): 66769920

約数和(自身を除く): 45443400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 7727, 15454, 23181, 30908, 38635, 46362, 61816, 77270, 92724, 115905, 154540, 177721, 185448, 231810, 309080, 355442, 463620, 533163, 710884, 888605, 927240, 1066326, 1421768, 1777210, 2132652, 2665815, 3554420, 4265304, 5331630, 7108840, 10663260, 21326520]

約数ペア:

[(1, 21326520), (2, 10663260), (3, 7108840), (4, 5331630), (5, 4265304), (6, 3554420), (8, 2665815), (10, 2132652), (12, 1777210), (15, 1421768), (20, 1066326), (23, 927240), (24, 888605), (30, 710884), (40, 533163), (46, 463620), (60, 355442), (69, 309080), (92, 231810), (115, 185448), (120, 177721), (138, 154540), (184, 115905), (230, 92724), (276, 77270), (345, 61816), (460, 46362), (552, 38635), (690, 30908), (920, 23181), (1380, 15454), (2760, 7727)]