19980888

素因数分解:

$2^3\times 3^1\times {\mathrm{37}}^1\times {\mathrm{22501}}^1$

素因数の和:22547

約数の個数: 32

約数和(自身を含む): 51304560

約数和(自身を除く): 31323672

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 37, 74, 111, 148, 222, 296, 444, 888, 22501, 45002, 67503, 90004, 135006, 180008, 270012, 540024, 832537, 1665074, 2497611, 3330148, 4995222, 6660296, 9990444, 19980888]

約数ペア:

[(1, 19980888), (2, 9990444), (3, 6660296), (4, 4995222), (6, 3330148), (8, 2497611), (12, 1665074), (24, 832537), (37, 540024), (74, 270012), (111, 180008), (148, 135006), (222, 90004), (296, 67503), (444, 45002), (888, 22501)]