19902564

素因数分解:

$2^2\times 3^3\times {\mathrm{11}}^2\times {\mathrm{1523}}^1$

素因数の和:1558

約数の個数: 72

約数和(自身を含む): 56753760

約数和(自身を除く): 36851196

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 44, 54, 66, 99, 108, 121, 132, 198, 242, 297, 363, 396, 484, 594, 726, 1089, 1188, 1452, 1523, 2178, 3046, 3267, 4356, 4569, 6092, 6534, 9138, 13068, 13707, 16753, 18276, 27414, 33506, 41121, 50259, 54828, 67012, 82242, 100518, 150777, 164484, 184283, 201036, 301554, 368566, 452331, 552849, 603108, 737132, 904662, 1105698, 1658547, 1809324, 2211396, 3317094, 4975641, 6634188, 9951282, 19902564]

約数ペア:

[(1, 19902564), (2, 9951282), (3, 6634188), (4, 4975641), (6, 3317094), (9, 2211396), (11, 1809324), (12, 1658547), (18, 1105698), (22, 904662), (27, 737132), (33, 603108), (36, 552849), (44, 452331), (54, 368566), (66, 301554), (99, 201036), (108, 184283), (121, 164484), (132, 150777), (198, 100518), (242, 82242), (297, 67012), (363, 54828), (396, 50259), (484, 41121), (594, 33506), (726, 27414), (1089, 18276), (1188, 16753), (1452, 13707), (1523, 13068), (2178, 9138), (3046, 6534), (3267, 6092), (4356, 4569)]