21430670

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{757}}^1$

素因数の和:932

約数の個数: 32

約数和(自身を含む): 40932000

約数和(自身を除く): 19501330

約数列:

[1, 2, 5, 10, 19, 38, 95, 149, 190, 298, 745, 757, 1490, 1514, 2831, 3785, 5662, 7570, 14155, 14383, 28310, 28766, 71915, 112793, 143830, 225586, 563965, 1127930, 2143067, 4286134, 10715335, 21430670]

約数ペア:

[(1, 21430670), (2, 10715335), (5, 4286134), (10, 2143067), (19, 1127930), (38, 563965), (95, 225586), (149, 143830), (190, 112793), (298, 71915), (745, 28766), (757, 28310), (1490, 14383), (1514, 14155), (2831, 7570), (3785, 5662)]