21418054

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1103}}^1$

素因数の和:1204

約数の個数: 32

約数和(自身を含む): 39214080

約数和(自身を除く): 17796026

約数列:

[1, 2, 7, 14, 19, 38, 73, 133, 146, 266, 511, 1022, 1103, 1387, 2206, 2774, 7721, 9709, 15442, 19418, 20957, 41914, 80519, 146699, 161038, 293398, 563633, 1127266, 1529861, 3059722, 10709027, 21418054]

約数ペア:

[(1, 21418054), (2, 10709027), (7, 3059722), (14, 1529861), (19, 1127266), (38, 563633), (73, 293398), (133, 161038), (146, 146699), (266, 80519), (511, 41914), (1022, 20957), (1103, 19418), (1387, 15442), (2206, 9709), (2774, 7721)]