205737567

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:276

約数の個数: 64

約数和(自身を含む): 342835200

約数和(自身を除く): 137097633

約数列:

[1, 3, 7, 19, 21, 57, 61, 79, 107, 133, 183, 237, 321, 399, 427, 553, 749, 1159, 1281, 1501, 1659, 2033, 2247, 3477, 4503, 4819, 6099, 6527, 8113, 8453, 10507, 14231, 14457, 19581, 24339, 25359, 31521, 33733, 42693, 45689, 59171, 91561, 101199, 124013, 137067, 160607, 177513, 274683, 372039, 481821, 515633, 640927, 868091, 1124249, 1546899, 1922781, 2604273, 3372747, 3609431, 9797027, 10828293, 29391081, 68579189, 205737567]

約数ペア:

[(1, 205737567), (3, 68579189), (7, 29391081), (19, 10828293), (21, 9797027), (57, 3609431), (61, 3372747), (79, 2604273), (107, 1922781), (133, 1546899), (183, 1124249), (237, 868091), (321, 640927), (399, 515633), (427, 481821), (553, 372039), (749, 274683), (1159, 177513), (1281, 160607), (1501, 137067), (1659, 124013), (2033, 101199), (2247, 91561), (3477, 59171), (4503, 45689), (4819, 42693), (6099, 33733), (6527, 31521), (8113, 25359), (8453, 24339), (10507, 19581), (14231, 14457)]