19913796

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:151

約数の個数: 144

約数和(自身を含む): 62052480

約数和(自身を除く): 42138684

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 53, 54, 63, 71, 84, 98, 106, 108, 126, 142, 147, 159, 189, 196, 212, 213, 252, 284, 294, 318, 371, 378, 426, 441, 477, 497, 588, 636, 639, 742, 756, 852, 882, 954, 994, 1113, 1278, 1323, 1431, 1484, 1491, 1764, 1908, 1917, 1988, 2226, 2556, 2597, 2646, 2862, 2982, 3339, 3479, 3763, 3834, 4452, 4473, 5194, 5292, 5724, 5964, 6678, 6958, 7526, 7668, 7791, 8946, 10017, 10388, 10437, 11289, 13356, 13419, 13916, 15052, 15582, 17892, 20034, 20874, 22578, 23373, 26341, 26838, 31164, 31311, 33867, 40068, 41748, 45156, 46746, 52682, 53676, 62622, 67734, 70119, 79023, 93492, 93933, 101601, 105364, 125244, 135468, 140238, 158046, 184387, 187866, 203202, 237069, 280476, 316092, 368774, 375732, 406404, 474138, 553161, 711207, 737548, 948276, 1106322, 1422414, 1659483, 2212644, 2844828, 3318966, 4978449, 6637932, 9956898, 19913796]

約数ペア:

[(1, 19913796), (2, 9956898), (3, 6637932), (4, 4978449), (6, 3318966), (7, 2844828), (9, 2212644), (12, 1659483), (14, 1422414), (18, 1106322), (21, 948276), (27, 737548), (28, 711207), (36, 553161), (42, 474138), (49, 406404), (53, 375732), (54, 368774), (63, 316092), (71, 280476), (84, 237069), (98, 203202), (106, 187866), (108, 184387), (126, 158046), (142, 140238), (147, 135468), (159, 125244), (189, 105364), (196, 101601), (212, 93933), (213, 93492), (252, 79023), (284, 70119), (294, 67734), (318, 62622), (371, 53676), (378, 52682), (426, 46746), (441, 45156), (477, 41748), (497, 40068), (588, 33867), (636, 31311), (639, 31164), (742, 26838), (756, 26341), (852, 23373), (882, 22578), (954, 20874), (994, 20034), (1113, 17892), (1278, 15582), (1323, 15052), (1431, 13916), (1484, 13419), (1491, 13356), (1764, 11289), (1908, 10437), (1917, 10388), (1988, 10017), (2226, 8946), (2556, 7791), (2597, 7668), (2646, 7526), (2862, 6958), (2982, 6678), (3339, 5964), (3479, 5724), (3763, 5292), (3834, 5194), (4452, 4473)]