81666123

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{809}}^1$

素因数の和:872

約数の個数: 64

約数和(自身を含む): 149299200

約数和(自身を除く): 67633077

約数列:

[1, 3, 7, 11, 19, 21, 23, 33, 57, 69, 77, 133, 161, 209, 231, 253, 399, 437, 483, 627, 759, 809, 1311, 1463, 1771, 2427, 3059, 4389, 4807, 5313, 5663, 8899, 9177, 14421, 15371, 16989, 18607, 26697, 33649, 46113, 55821, 62293, 100947, 107597, 130249, 169081, 186879, 204677, 322791, 353533, 390747, 507243, 614031, 1060599, 1183567, 1432739, 2474731, 3550701, 3888863, 4298217, 7424193, 11666589, 27222041, 81666123]

約数ペア:

[(1, 81666123), (3, 27222041), (7, 11666589), (11, 7424193), (19, 4298217), (21, 3888863), (23, 3550701), (33, 2474731), (57, 1432739), (69, 1183567), (77, 1060599), (133, 614031), (161, 507243), (209, 390747), (231, 353533), (253, 322791), (399, 204677), (437, 186879), (483, 169081), (627, 130249), (759, 107597), (809, 100947), (1311, 62293), (1463, 55821), (1771, 46113), (2427, 33649), (3059, 26697), (4389, 18607), (4807, 16989), (5313, 15371), (5663, 14421), (8899, 9177)]