21012260

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{17807}}^1$

素因数の和:17875

約数の個数: 24

約数和(自身を含む): 44876160

約数和(自身を除く): 23863900

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180, 17807, 35614, 71228, 89035, 178070, 356140, 1050613, 2101226, 4202452, 5253065, 10506130, 21012260]

約数ペア:

[(1, 21012260), (2, 10506130), (4, 5253065), (5, 4202452), (10, 2101226), (20, 1050613), (59, 356140), (118, 178070), (236, 89035), (295, 71228), (590, 35614), (1180, 17807)]