21949900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31357}}^1$

素因数の和:31378

約数の個数: 36

約数和(自身を含む): 54437488

約数和(自身を除く): 32487588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 31357, 62714, 125428, 156785, 219499, 313570, 438998, 627140, 783925, 877996, 1097495, 1567850, 2194990, 3135700, 4389980, 5487475, 10974950, 21949900]

約数ペア:

[(1, 21949900), (2, 10974950), (4, 5487475), (5, 4389980), (7, 3135700), (10, 2194990), (14, 1567850), (20, 1097495), (25, 877996), (28, 783925), (35, 627140), (50, 438998), (70, 313570), (100, 219499), (140, 156785), (175, 125428), (350, 62714), (700, 31357)]