16720172

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{3709}}^1$

素因数の和:3750

約数の個数: 36

約数和(自身を含む): 35526960

約数和(自身を除く): 18806788

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 644, 1127, 2254, 3709, 4508, 7418, 14836, 25963, 51926, 85307, 103852, 170614, 181741, 341228, 363482, 597149, 726964, 1194298, 2388596, 4180043, 8360086, 16720172]

約数ペア:

[(1, 16720172), (2, 8360086), (4, 4180043), (7, 2388596), (14, 1194298), (23, 726964), (28, 597149), (46, 363482), (49, 341228), (92, 181741), (98, 170614), (161, 103852), (196, 85307), (322, 51926), (644, 25963), (1127, 14836), (2254, 7418), (3709, 4508)]