21371133025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1\times {\mathrm{337}}^1$

素因数の和:659

約数の個数: 96

約数和(自身を含む): 31232822400

約数和(自身を除く): 9861689375

約数列:

[1, 5, 11, 19, 25, 53, 55, 95, 209, 229, 265, 275, 337, 475, 583, 1007, 1045, 1145, 1325, 1685, 2519, 2915, 3707, 4351, 5035, 5225, 5725, 6403, 8425, 11077, 12137, 12595, 14575, 17861, 18535, 21755, 25175, 32015, 47861, 55385, 60685, 62975, 70433, 77173, 89305, 92675, 108775, 133507, 160075, 196471, 230603, 239305, 276925, 303425, 339359, 352165, 385865, 446525, 667535, 848903, 982355, 1153015, 1196525, 1466287, 1696795, 1760825, 1929325, 2536633, 3337675, 3732949, 4090169, 4244515, 4911775, 5765075, 7331435, 8483975, 12683165, 16129157, 18664745, 20450845, 21222575, 36657175, 44991859, 63415825, 77713211, 80645785, 93323725, 102254225, 224959295, 388566055, 403228925, 854845321, 1124796475, 1942830275, 4274226605, 21371133025]

約数ペア:

[(1, 21371133025), (5, 4274226605), (11, 1942830275), (19, 1124796475), (25, 854845321), (53, 403228925), (55, 388566055), (95, 224959295), (209, 102254225), (229, 93323725), (265, 80645785), (275, 77713211), (337, 63415825), (475, 44991859), (583, 36657175), (1007, 21222575), (1045, 20450845), (1145, 18664745), (1325, 16129157), (1685, 12683165), (2519, 8483975), (2915, 7331435), (3707, 5765075), (4351, 4911775), (5035, 4244515), (5225, 4090169), (5725, 3732949), (6403, 3337675), (8425, 2536633), (11077, 1929325), (12137, 1760825), (12595, 1696795), (14575, 1466287), (17861, 1196525), (18535, 1153015), (21755, 982355), (25175, 848903), (32015, 667535), (47861, 446525), (55385, 385865), (60685, 352165), (62975, 339359), (70433, 303425), (77173, 276925), (89305, 239305), (92675, 230603), (108775, 196471), (133507, 160075)]