20689788

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{10709}}^1$

素因数の和:10746

約数の個数: 48

約数和(自身を含む): 57576960

約数和(自身を除く): 36887172

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 42, 46, 69, 84, 92, 138, 161, 276, 322, 483, 644, 966, 1932, 10709, 21418, 32127, 42836, 64254, 74963, 128508, 149926, 224889, 246307, 299852, 449778, 492614, 738921, 899556, 985228, 1477842, 1724149, 2955684, 3448298, 5172447, 6896596, 10344894, 20689788]

約数ペア:

[(1, 20689788), (2, 10344894), (3, 6896596), (4, 5172447), (6, 3448298), (7, 2955684), (12, 1724149), (14, 1477842), (21, 985228), (23, 899556), (28, 738921), (42, 492614), (46, 449778), (69, 299852), (84, 246307), (92, 224889), (138, 149926), (161, 128508), (276, 74963), (322, 64254), (483, 42836), (644, 32127), (966, 21418), (1932, 10709)]