19754982

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{263}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 28145178

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 107, 117, 214, 234, 263, 321, 351, 526, 642, 702, 789, 963, 1391, 1578, 1926, 2367, 2782, 2889, 3419, 4173, 4734, 5778, 6838, 7101, 8346, 10257, 12519, 14202, 20514, 25038, 28141, 30771, 37557, 56282, 61542, 75114, 84423, 92313, 168846, 184626, 253269, 365833, 506538, 731666, 759807, 1097499, 1519614, 2194998, 3292497, 6584994, 9877491, 19754982]

約数ペア:

[(1, 19754982), (2, 9877491), (3, 6584994), (6, 3292497), (9, 2194998), (13, 1519614), (18, 1097499), (26, 759807), (27, 731666), (39, 506538), (54, 365833), (78, 253269), (107, 184626), (117, 168846), (214, 92313), (234, 84423), (263, 75114), (321, 61542), (351, 56282), (526, 37557), (642, 30771), (702, 28141), (789, 25038), (963, 20514), (1391, 14202), (1578, 12519), (1926, 10257), (2367, 8346), (2782, 7101), (2889, 6838), (3419, 5778), (4173, 4734)]