21010612

素因数分解:

$2^2\times 7^2\times {\mathrm{107197}}^1$

素因数の和:107215

約数の個数: 18

約数和(自身を含む): 42772002

約数和(自身を除く): 21761390

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 107197, 214394, 428788, 750379, 1500758, 3001516, 5252653, 10505306, 21010612]

約数ペア:

[(1, 21010612), (2, 10505306), (4, 5252653), (7, 3001516), (14, 1500758), (28, 750379), (49, 428788), (98, 214394), (196, 107197)]