21440670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{10667}}^1$

素因数の和:10744

約数の個数: 32

約数和(自身を含む): 52230528

約数和(自身を除く): 30789858

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 67, 134, 201, 335, 402, 670, 1005, 2010, 10667, 21334, 32001, 53335, 64002, 106670, 160005, 320010, 714689, 1429378, 2144067, 3573445, 4288134, 7146890, 10720335, 21440670]

約数ペア:

[(1, 21440670), (2, 10720335), (3, 7146890), (5, 4288134), (6, 3573445), (10, 2144067), (15, 1429378), (30, 714689), (67, 320010), (134, 160005), (201, 106670), (335, 64002), (402, 53335), (670, 32001), (1005, 21334), (2010, 10667)]