21468954

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:271

約数の個数: 64

約数和(自身を含む): 48875904

約数和(自身を除く): 27406950

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 43, 74, 78, 86, 111, 129, 173, 222, 258, 346, 481, 519, 559, 962, 1038, 1118, 1443, 1591, 1677, 2249, 2886, 3182, 3354, 4498, 4773, 6401, 6747, 7439, 9546, 12802, 13494, 14878, 19203, 20683, 22317, 38406, 41366, 44634, 62049, 83213, 96707, 124098, 166426, 193414, 249639, 275243, 290121, 499278, 550486, 580242, 825729, 1651458, 3578159, 7156318, 10734477, 21468954]

約数ペア:

[(1, 21468954), (2, 10734477), (3, 7156318), (6, 3578159), (13, 1651458), (26, 825729), (37, 580242), (39, 550486), (43, 499278), (74, 290121), (78, 275243), (86, 249639), (111, 193414), (129, 166426), (173, 124098), (222, 96707), (258, 83213), (346, 62049), (481, 44634), (519, 41366), (559, 38406), (962, 22317), (1038, 20683), (1118, 19203), (1443, 14878), (1591, 13494), (1677, 12802), (2249, 9546), (2886, 7439), (3182, 6747), (3354, 6401), (4498, 4773)]