21431072

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{51517}}^1$

素因数の和:51540

約数の個数: 24

約数和(自身を含む): 45438876

約数和(自身を除く): 24007804

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 51517, 103034, 206068, 412136, 669721, 824272, 1339442, 1648544, 2678884, 5357768, 10715536, 21431072]

約数ペア:

[(1, 21431072), (2, 10715536), (4, 5357768), (8, 2678884), (13, 1648544), (16, 1339442), (26, 824272), (32, 669721), (52, 412136), (104, 206068), (208, 103034), (416, 51517)]