21308210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{27673}}^1$

素因数の和:27698

約数の個数: 32

約数和(自身を含む): 47820672

約数和(自身を除く): 26512462

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 27673, 55346, 138365, 193711, 276730, 304403, 387422, 608806, 968555, 1522015, 1937110, 2130821, 3044030, 4261642, 10654105, 21308210]

約数ペア:

[(1, 21308210), (2, 10654105), (5, 4261642), (7, 3044030), (10, 2130821), (11, 1937110), (14, 1522015), (22, 968555), (35, 608806), (55, 387422), (70, 304403), (77, 276730), (110, 193711), (154, 138365), (385, 55346), (770, 27673)]