20201491611

素因数分解:

$3^4\times 7^3\times {\mathrm{29}}^1\times {\mathrm{25073}}^1$

素因数の和:25135

約数の個数: 80

約数和(自身を含む): 36407448000

約数和(自身を除く): 16205956389

約数列:

[1, 3, 7, 9, 21, 27, 29, 49, 63, 81, 87, 147, 189, 203, 261, 343, 441, 567, 609, 783, 1029, 1323, 1421, 1827, 2349, 3087, 3969, 4263, 5481, 9261, 9947, 12789, 16443, 25073, 27783, 29841, 38367, 75219, 89523, 115101, 175511, 225657, 268569, 526533, 676971, 727117, 805707, 1228577, 1579599, 2030913, 2181351, 3685731, 4738797, 5089819, 6544053, 8600039, 11057193, 14216391, 15269457, 19632159, 25800117, 33171579, 35628733, 45808371, 58896477, 77400351, 99514737, 106886199, 137425113, 232201053, 249401131, 320658597, 412275339, 696603159, 748203393, 961975791, 2244610179, 2885927373, 6733830537, 20201491611]

約数ペア:

[(1, 20201491611), (3, 6733830537), (7, 2885927373), (9, 2244610179), (21, 961975791), (27, 748203393), (29, 696603159), (49, 412275339), (63, 320658597), (81, 249401131), (87, 232201053), (147, 137425113), (189, 106886199), (203, 99514737), (261, 77400351), (343, 58896477), (441, 45808371), (567, 35628733), (609, 33171579), (783, 25800117), (1029, 19632159), (1323, 15269457), (1421, 14216391), (1827, 11057193), (2349, 8600039), (3087, 6544053), (3969, 5089819), (4263, 4738797), (5481, 3685731), (9261, 2181351), (9947, 2030913), (12789, 1579599), (16443, 1228577), (25073, 805707), (27783, 727117), (29841, 676971), (38367, 526533), (75219, 268569), (89523, 225657), (115101, 175511)]