17977904

素因数分解:

$2^4\times 7^2\times {\mathrm{23}}^1\times {\mathrm{997}}^1$

素因数の和:1042

約数の個数: 60

約数和(自身を含む): 42323184

約数和(自身を除く): 24345280

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 49, 56, 92, 98, 112, 161, 184, 196, 322, 368, 392, 644, 784, 997, 1127, 1288, 1994, 2254, 2576, 3988, 4508, 6979, 7976, 9016, 13958, 15952, 18032, 22931, 27916, 45862, 48853, 55832, 91724, 97706, 111664, 160517, 183448, 195412, 321034, 366896, 390824, 642068, 781648, 1123619, 1284136, 2247238, 2568272, 4494476, 8988952, 17977904]

約数ペア:

[(1, 17977904), (2, 8988952), (4, 4494476), (7, 2568272), (8, 2247238), (14, 1284136), (16, 1123619), (23, 781648), (28, 642068), (46, 390824), (49, 366896), (56, 321034), (92, 195412), (98, 183448), (112, 160517), (161, 111664), (184, 97706), (196, 91724), (322, 55832), (368, 48853), (392, 45862), (644, 27916), (784, 22931), (997, 18032), (1127, 15952), (1288, 13958), (1994, 9016), (2254, 7976), (2576, 6979), (3988, 4508)]