21387800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{15277}}^1$

素因数の和:15300

約数の個数: 48

約数和(自身を含む): 56834160

約数和(自身を除く): 35446360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400, 15277, 30554, 61108, 76385, 106939, 122216, 152770, 213878, 305540, 381925, 427756, 534695, 611080, 763850, 855512, 1069390, 1527700, 2138780, 2673475, 3055400, 4277560, 5346950, 10693900, 21387800]

約数ペア:

[(1, 21387800), (2, 10693900), (4, 5346950), (5, 4277560), (7, 3055400), (8, 2673475), (10, 2138780), (14, 1527700), (20, 1069390), (25, 855512), (28, 763850), (35, 611080), (40, 534695), (50, 427756), (56, 381925), (70, 305540), (100, 213878), (140, 152770), (175, 122216), (200, 106939), (280, 76385), (350, 61108), (700, 30554), (1400, 15277)]