217282611

素因数分解:

$3^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{439}}^1$

素因数の和:513

約数の個数: 64

約数和(自身を含む): 374528000

約数和(自身を除く): 157245389

約数列:

[1, 3, 7, 13, 21, 37, 39, 49, 91, 111, 147, 259, 273, 343, 439, 481, 637, 777, 1029, 1317, 1443, 1813, 1911, 3073, 3367, 4459, 5439, 5707, 9219, 10101, 12691, 13377, 16243, 17121, 21511, 23569, 38073, 39949, 48729, 64533, 70707, 113701, 119847, 150577, 164983, 211159, 279643, 341103, 451731, 494949, 633477, 795907, 838929, 1478113, 1957501, 2387721, 4434339, 5571349, 5872503, 10346791, 16714047, 31040373, 72427537, 217282611]

約数ペア:

[(1, 217282611), (3, 72427537), (7, 31040373), (13, 16714047), (21, 10346791), (37, 5872503), (39, 5571349), (49, 4434339), (91, 2387721), (111, 1957501), (147, 1478113), (259, 838929), (273, 795907), (343, 633477), (439, 494949), (481, 451731), (637, 341103), (777, 279643), (1029, 211159), (1317, 164983), (1443, 150577), (1813, 119847), (1911, 113701), (3073, 70707), (3367, 64533), (4459, 48729), (5439, 39949), (5707, 38073), (9219, 23569), (10101, 21511), (12691, 17121), (13377, 16243)]