20398686

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{659}}^1$

素因数の和:749

約数の個数: 64

約数和(自身を含む): 51701760

約数和(自身を除く): 31303074

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 67, 77, 134, 154, 201, 231, 402, 462, 469, 659, 737, 938, 1318, 1407, 1474, 1977, 2211, 2814, 3954, 4422, 4613, 5159, 7249, 9226, 10318, 13839, 14498, 15477, 21747, 27678, 30954, 43494, 44153, 50743, 88306, 101486, 132459, 152229, 264918, 304458, 309071, 485683, 618142, 927213, 971366, 1457049, 1854426, 2914098, 3399781, 6799562, 10199343, 20398686]

約数ペア:

[(1, 20398686), (2, 10199343), (3, 6799562), (6, 3399781), (7, 2914098), (11, 1854426), (14, 1457049), (21, 971366), (22, 927213), (33, 618142), (42, 485683), (66, 309071), (67, 304458), (77, 264918), (134, 152229), (154, 132459), (201, 101486), (231, 88306), (402, 50743), (462, 44153), (469, 43494), (659, 30954), (737, 27678), (938, 21747), (1318, 15477), (1407, 14498), (1474, 13839), (1977, 10318), (2211, 9226), (2814, 7249), (3954, 5159), (4422, 4613)]