21693340

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{15277}}^1$

素因数の和:15357

約数の個数: 24

約数和(自身を含む): 46200672

約数和(自身を除く): 24507332

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 15277, 30554, 61108, 76385, 152770, 305540, 1084667, 2169334, 4338668, 5423335, 10846670, 21693340]

約数ペア:

[(1, 21693340), (2, 10846670), (4, 5423335), (5, 4338668), (10, 2169334), (20, 1084667), (71, 305540), (142, 152770), (284, 76385), (355, 61108), (710, 30554), (1420, 15277)]