21130184

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{619}}^1$

素因数の和:893

約数の個数: 32

約数和(自身を含む): 42184800

約数和(自身を除く): 21054616

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 251, 502, 619, 1004, 1238, 2008, 2476, 4267, 4952, 8534, 10523, 17068, 21046, 34136, 42092, 84184, 155369, 310738, 621476, 1242952, 2641273, 5282546, 10565092, 21130184]

約数ペア:

[(1, 21130184), (2, 10565092), (4, 5282546), (8, 2641273), (17, 1242952), (34, 621476), (68, 310738), (136, 155369), (251, 84184), (502, 42092), (619, 34136), (1004, 21046), (1238, 17068), (2008, 10523), (2476, 8534), (4267, 4952)]