21077628

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:275

約数の個数: 96

約数和(自身を含む): 58931712

約数和(自身を除く): 37854084

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 71, 78, 132, 142, 143, 156, 173, 213, 284, 286, 346, 426, 429, 519, 572, 692, 781, 852, 858, 923, 1038, 1562, 1716, 1846, 1903, 2076, 2249, 2343, 2769, 3124, 3692, 3806, 4498, 4686, 5538, 5709, 6747, 7612, 8996, 9372, 10153, 11076, 11418, 12283, 13494, 20306, 22836, 24566, 24739, 26988, 30459, 36849, 40612, 49132, 49478, 60918, 73698, 74217, 98956, 121836, 135113, 147396, 148434, 159679, 270226, 296868, 319358, 405339, 479037, 540452, 638716, 810678, 958074, 1621356, 1756469, 1916148, 3512938, 5269407, 7025876, 10538814, 21077628]

約数ペア:

[(1, 21077628), (2, 10538814), (3, 7025876), (4, 5269407), (6, 3512938), (11, 1916148), (12, 1756469), (13, 1621356), (22, 958074), (26, 810678), (33, 638716), (39, 540452), (44, 479037), (52, 405339), (66, 319358), (71, 296868), (78, 270226), (132, 159679), (142, 148434), (143, 147396), (156, 135113), (173, 121836), (213, 98956), (284, 74217), (286, 73698), (346, 60918), (426, 49478), (429, 49132), (519, 40612), (572, 36849), (692, 30459), (781, 26988), (852, 24739), (858, 24566), (923, 22836), (1038, 20306), (1562, 13494), (1716, 12283), (1846, 11418), (1903, 11076), (2076, 10153), (2249, 9372), (2343, 8996), (2769, 7612), (3124, 6747), (3692, 5709), (3806, 5538), (4498, 4686)]