17807978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{2221}}^1$

素因数の和:2453

約数の個数: 16

約数和(自身を含む): 28263840

約数和(自身を除く): 10455862

約数列:

[1, 2, 19, 38, 211, 422, 2221, 4009, 4442, 8018, 42199, 84398, 468631, 937262, 8903989, 17807978]

約数ペア:

[(1, 17807978), (2, 8903989), (19, 937262), (38, 468631), (211, 84398), (422, 42199), (2221, 8018), (4009, 4442)]