21000331758

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{3313}}^1\times {\mathrm{4079}}^1$

素因数の和:7441

約数の個数: 64

約数和(自身を含む): 49325045760

約数和(自身を除く): 28324714002

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 74, 111, 222, 259, 518, 777, 1554, 3313, 4079, 6626, 8158, 9939, 12237, 19878, 23191, 24474, 28553, 46382, 57106, 69573, 85659, 122581, 139146, 150923, 171318, 245162, 301846, 367743, 452769, 735486, 858067, 905538, 1056461, 1716134, 2112922, 2574201, 3169383, 5148402, 6338766, 13513727, 27027454, 40541181, 81082362, 94596089, 189192178, 283788267, 500007899, 567576534, 1000015798, 1500023697, 3000047394, 3500055293, 7000110586, 10500165879, 21000331758]

約数ペア:

[(1, 21000331758), (2, 10500165879), (3, 7000110586), (6, 3500055293), (7, 3000047394), (14, 1500023697), (21, 1000015798), (37, 567576534), (42, 500007899), (74, 283788267), (111, 189192178), (222, 94596089), (259, 81082362), (518, 40541181), (777, 27027454), (1554, 13513727), (3313, 6338766), (4079, 5148402), (6626, 3169383), (8158, 2574201), (9939, 2112922), (12237, 1716134), (19878, 1056461), (23191, 905538), (24474, 858067), (28553, 735486), (46382, 452769), (57106, 367743), (69573, 301846), (85659, 245162), (122581, 171318), (139146, 150923)]