19983184

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{503}}^1$

素因数の和:715

約数の個数: 40

約数和(自身を含む): 41997312

約数和(自身を除く): 22014128

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 191, 208, 382, 503, 764, 1006, 1528, 2012, 2483, 3056, 4024, 4966, 6539, 8048, 9932, 13078, 19864, 26156, 39728, 52312, 96073, 104624, 192146, 384292, 768584, 1248949, 1537168, 2497898, 4995796, 9991592, 19983184]

約数ペア:

[(1, 19983184), (2, 9991592), (4, 4995796), (8, 2497898), (13, 1537168), (16, 1248949), (26, 768584), (52, 384292), (104, 192146), (191, 104624), (208, 96073), (382, 52312), (503, 39728), (764, 26156), (1006, 19864), (1528, 13078), (2012, 9932), (2483, 8048), (3056, 6539), (4024, 4966)]