21730340

素因数分解:

$2^2\times 5^1\times {\mathrm{863}}^1\times {\mathrm{1259}}^1$

素因数の和:2131

約数の個数: 24

約数和(自身を含む): 45722880

約数和(自身を除く): 23992540

約数列:

[1, 2, 4, 5, 10, 20, 863, 1259, 1726, 2518, 3452, 4315, 5036, 6295, 8630, 12590, 17260, 25180, 1086517, 2173034, 4346068, 5432585, 10865170, 21730340]

約数ペア:

[(1, 21730340), (2, 10865170), (4, 5432585), (5, 4346068), (10, 2173034), (20, 1086517), (863, 25180), (1259, 17260), (1726, 12590), (2518, 8630), (3452, 6295), (4315, 5036)]