16861990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{439}}^1$

素因数の和:636

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 15071450

約数列:

[1, 2, 5, 10, 23, 46, 115, 167, 230, 334, 439, 835, 878, 1670, 2195, 3841, 4390, 7682, 10097, 19205, 20194, 38410, 50485, 73313, 100970, 146626, 366565, 733130, 1686199, 3372398, 8430995, 16861990]

約数ペア:

[(1, 16861990), (2, 8430995), (5, 3372398), (10, 1686199), (23, 733130), (46, 366565), (115, 146626), (167, 100970), (230, 73313), (334, 50485), (439, 38410), (835, 20194), (878, 19205), (1670, 10097), (2195, 7682), (3841, 4390)]