21870608

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{577}}^1$

素因数の和:711

約数の個数: 40

約数和(自身を含む): 44723328

約数和(自身を除く): 22852720

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 103, 184, 206, 368, 412, 577, 824, 1154, 1648, 2308, 2369, 4616, 4738, 9232, 9476, 13271, 18952, 26542, 37904, 53084, 59431, 106168, 118862, 212336, 237724, 475448, 950896, 1366913, 2733826, 5467652, 10935304, 21870608]

約数ペア:

[(1, 21870608), (2, 10935304), (4, 5467652), (8, 2733826), (16, 1366913), (23, 950896), (46, 475448), (92, 237724), (103, 212336), (184, 118862), (206, 106168), (368, 59431), (412, 53084), (577, 37904), (824, 26542), (1154, 18952), (1648, 13271), (2308, 9476), (2369, 9232), (4616, 4738)]