21610340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{431}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 47900160

約数和(自身を除く): 26289820

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 109, 115, 218, 230, 431, 436, 460, 545, 862, 1090, 1724, 2155, 2180, 2507, 4310, 5014, 8620, 9913, 10028, 12535, 19826, 25070, 39652, 46979, 49565, 50140, 93958, 99130, 187916, 198260, 234895, 469790, 939580, 1080517, 2161034, 4322068, 5402585, 10805170, 21610340]

約数ペア:

[(1, 21610340), (2, 10805170), (4, 5402585), (5, 4322068), (10, 2161034), (20, 1080517), (23, 939580), (46, 469790), (92, 234895), (109, 198260), (115, 187916), (218, 99130), (230, 93958), (431, 50140), (436, 49565), (460, 46979), (545, 39652), (862, 25070), (1090, 19826), (1724, 12535), (2155, 10028), (2180, 9913), (2507, 8620), (4310, 5014)]