20510196

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:285

約数の個数: 96

約数和(自身を含む): 58705920

約数和(自身を除く): 38195724

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 57, 71, 76, 84, 114, 133, 142, 181, 213, 228, 266, 284, 362, 399, 426, 497, 532, 543, 724, 798, 852, 994, 1086, 1267, 1349, 1491, 1596, 1988, 2172, 2534, 2698, 2982, 3439, 3801, 4047, 5068, 5396, 5964, 6878, 7602, 8094, 9443, 10317, 12851, 13756, 15204, 16188, 18886, 20634, 24073, 25702, 28329, 37772, 38553, 41268, 48146, 51404, 56658, 72219, 77106, 89957, 96292, 113316, 144438, 154212, 179914, 244169, 269871, 288876, 359828, 488338, 539742, 732507, 976676, 1079484, 1465014, 1709183, 2930028, 3418366, 5127549, 6836732, 10255098, 20510196]

約数ペア:

[(1, 20510196), (2, 10255098), (3, 6836732), (4, 5127549), (6, 3418366), (7, 2930028), (12, 1709183), (14, 1465014), (19, 1079484), (21, 976676), (28, 732507), (38, 539742), (42, 488338), (57, 359828), (71, 288876), (76, 269871), (84, 244169), (114, 179914), (133, 154212), (142, 144438), (181, 113316), (213, 96292), (228, 89957), (266, 77106), (284, 72219), (362, 56658), (399, 51404), (426, 48146), (497, 41268), (532, 38553), (543, 37772), (724, 28329), (798, 25702), (852, 24073), (994, 20634), (1086, 18886), (1267, 16188), (1349, 15204), (1491, 13756), (1596, 12851), (1988, 10317), (2172, 9443), (2534, 8094), (2698, 7602), (2982, 6878), (3439, 5964), (3801, 5396), (4047, 5068)]