20805216341

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:343

約数の個数: 96

約数和(自身を含む): 27696162816

約数和(自身を除く): 6890946475

約数列:

[1, 7, 13, 31, 41, 91, 101, 137, 169, 217, 287, 403, 533, 707, 959, 1183, 1271, 1313, 1781, 2821, 3131, 3731, 4141, 4247, 5239, 5617, 6929, 8897, 9191, 12467, 13837, 16523, 17069, 21917, 23153, 28987, 29729, 36673, 39319, 40703, 48503, 53833, 55211, 73021, 96859, 115661, 119483, 128371, 162071, 174127, 179881, 214799, 284921, 376831, 386477, 428947, 511147, 529139, 567317, 699829, 717743, 898597, 949273, 1218889, 1259167, 1503593, 1668823, 2263651, 2338453, 3002629, 3703973, 3971219, 4898803, 5024201, 5576311, 6644911, 7375121, 11681761, 15845557, 16369171, 17586827, 21694699, 29427463, 39034177, 51625847, 72492043, 95876573, 123107789, 151862893, 205992241, 228628751, 507444301, 671136011, 1600401257, 2972173763, 20805216341]

約数ペア:

[(1, 20805216341), (7, 2972173763), (13, 1600401257), (31, 671136011), (41, 507444301), (91, 228628751), (101, 205992241), (137, 151862893), (169, 123107789), (217, 95876573), (287, 72492043), (403, 51625847), (533, 39034177), (707, 29427463), (959, 21694699), (1183, 17586827), (1271, 16369171), (1313, 15845557), (1781, 11681761), (2821, 7375121), (3131, 6644911), (3731, 5576311), (4141, 5024201), (4247, 4898803), (5239, 3971219), (5617, 3703973), (6929, 3002629), (8897, 2338453), (9191, 2263651), (12467, 1668823), (13837, 1503593), (16523, 1259167), (17069, 1218889), (21917, 949273), (23153, 898597), (28987, 717743), (29729, 699829), (36673, 567317), (39319, 529139), (40703, 511147), (48503, 428947), (53833, 386477), (55211, 376831), (73021, 284921), (96859, 214799), (115661, 179881), (119483, 174127), (128371, 162071)]