21000724494

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{587}}^1\times {\mathrm{1979}}^1$

素因数の和:2725

約数の個数: 64

約数和(自身を含む): 44259747840

約数和(自身を除く): 23259023346

約数列:

[1, 2, 3, 6, 23, 46, 69, 131, 138, 262, 393, 587, 786, 1174, 1761, 1979, 3013, 3522, 3958, 5937, 6026, 9039, 11874, 13501, 18078, 27002, 40503, 45517, 76897, 81006, 91034, 136551, 153794, 230691, 259249, 273102, 461382, 518498, 777747, 1161673, 1555494, 1768631, 2323346, 3485019, 3537262, 5305893, 5962727, 6970038, 10611786, 11925454, 17888181, 26718479, 35776362, 53436958, 80155437, 152179163, 160310874, 304358326, 456537489, 913074978, 3500120749, 7000241498, 10500362247, 21000724494]

約数ペア:

[(1, 21000724494), (2, 10500362247), (3, 7000241498), (6, 3500120749), (23, 913074978), (46, 456537489), (69, 304358326), (131, 160310874), (138, 152179163), (262, 80155437), (393, 53436958), (587, 35776362), (786, 26718479), (1174, 17888181), (1761, 11925454), (1979, 10611786), (3013, 6970038), (3522, 5962727), (3958, 5305893), (5937, 3537262), (6026, 3485019), (9039, 2323346), (11874, 1768631), (13501, 1555494), (18078, 1161673), (27002, 777747), (40503, 518498), (45517, 461382), (76897, 273102), (81006, 259249), (91034, 230691), (136551, 153794)]