21327614

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:273

約数の個数: 64

約数和(自身を含む): 43338240

約数和(自身を除く): 22010626

約数列:

[1, 2, 7, 11, 14, 19, 22, 37, 38, 74, 77, 133, 154, 197, 209, 259, 266, 394, 407, 418, 518, 703, 814, 1379, 1406, 1463, 2167, 2758, 2849, 2926, 3743, 4334, 4921, 5698, 7289, 7486, 7733, 9842, 14578, 15169, 15466, 26201, 30338, 41173, 51023, 52402, 54131, 80179, 82346, 102046, 108262, 138491, 160358, 276982, 288211, 561253, 576422, 969437, 1122506, 1523401, 1938874, 3046802, 10663807, 21327614]

約数ペア:

[(1, 21327614), (2, 10663807), (7, 3046802), (11, 1938874), (14, 1523401), (19, 1122506), (22, 969437), (37, 576422), (38, 561253), (74, 288211), (77, 276982), (133, 160358), (154, 138491), (197, 108262), (209, 102046), (259, 82346), (266, 80179), (394, 54131), (407, 52402), (418, 51023), (518, 41173), (703, 30338), (814, 26201), (1379, 15466), (1406, 15169), (1463, 14578), (2167, 9842), (2758, 7733), (2849, 7486), (2926, 7289), (3743, 5698), (4334, 4921)]