21000687204

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2053}}^1\times {\mathrm{2591}}^1$

素因数の和:4705

約数の個数: 96

約数和(自身を含む): 57243303936

約数和(自身を除く): 36242616732

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 47, 84, 94, 141, 188, 282, 329, 564, 658, 987, 1316, 1974, 2053, 2591, 3948, 4106, 5182, 6159, 7773, 8212, 10364, 12318, 14371, 15546, 18137, 24636, 28742, 31092, 36274, 43113, 54411, 57484, 72548, 86226, 96491, 108822, 121777, 172452, 192982, 217644, 243554, 289473, 365331, 385964, 487108, 578946, 675437, 730662, 852439, 1157892, 1350874, 1461324, 1704878, 2026311, 2557317, 2701748, 3409756, 4052622, 5114634, 5319323, 8105244, 10229268, 10638646, 15957969, 21277292, 31915938, 37235261, 63831876, 74470522, 111705783, 148941044, 223411566, 250008181, 446823132, 500016362, 750024543, 1000032724, 1500049086, 1750057267, 3000098172, 3500114534, 5250171801, 7000229068, 10500343602, 21000687204]

約数ペア:

[(1, 21000687204), (2, 10500343602), (3, 7000229068), (4, 5250171801), (6, 3500114534), (7, 3000098172), (12, 1750057267), (14, 1500049086), (21, 1000032724), (28, 750024543), (42, 500016362), (47, 446823132), (84, 250008181), (94, 223411566), (141, 148941044), (188, 111705783), (282, 74470522), (329, 63831876), (564, 37235261), (658, 31915938), (987, 21277292), (1316, 15957969), (1974, 10638646), (2053, 10229268), (2591, 8105244), (3948, 5319323), (4106, 5114634), (5182, 4052622), (6159, 3409756), (7773, 2701748), (8212, 2557317), (10364, 2026311), (12318, 1704878), (14371, 1461324), (15546, 1350874), (18137, 1157892), (24636, 852439), (28742, 730662), (31092, 675437), (36274, 578946), (43113, 487108), (54411, 385964), (57484, 365331), (72548, 289473), (86226, 243554), (96491, 217644), (108822, 192982), (121777, 172452)]