16555539

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 30643200

約数和(自身を除く): 14087661

約数列:

[1, 3, 7, 11, 13, 21, 33, 37, 39, 77, 91, 111, 143, 149, 231, 259, 273, 407, 429, 447, 481, 777, 1001, 1043, 1221, 1443, 1639, 1937, 2849, 3003, 3129, 3367, 4917, 5291, 5513, 5811, 8547, 10101, 11473, 13559, 15873, 16539, 21307, 34419, 37037, 38591, 40677, 60643, 63921, 71669, 111111, 115773, 149149, 181929, 215007, 424501, 447447, 501683, 788359, 1273503, 1505049, 2365077, 5518513, 16555539]

約数ペア:

[(1, 16555539), (3, 5518513), (7, 2365077), (11, 1505049), (13, 1273503), (21, 788359), (33, 501683), (37, 447447), (39, 424501), (77, 215007), (91, 181929), (111, 149149), (143, 115773), (149, 111111), (231, 71669), (259, 63921), (273, 60643), (407, 40677), (429, 38591), (447, 37037), (481, 34419), (777, 21307), (1001, 16539), (1043, 15873), (1221, 13559), (1443, 11473), (1639, 10101), (1937, 8547), (2849, 5811), (3003, 5513), (3129, 5291), (3367, 4917)]