1821981652

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{643}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 3304544320

約数和(自身を除く): 1482562668

約数列:

[1, 2, 4, 67, 97, 109, 134, 194, 218, 268, 388, 436, 643, 1286, 2572, 6499, 7303, 10573, 12998, 14606, 21146, 25996, 29212, 42292, 43081, 62371, 70087, 86162, 124742, 140174, 172324, 249484, 280348, 708391, 1416782, 2833564, 4178857, 4695829, 6798439, 8357714, 9391658, 13596878, 16715428, 18783316, 27193756, 455495413, 910990826, 1821981652]

約数ペア:

[(1, 1821981652), (2, 910990826), (4, 455495413), (67, 27193756), (97, 18783316), (109, 16715428), (134, 13596878), (194, 9391658), (218, 8357714), (268, 6798439), (388, 4695829), (436, 4178857), (643, 2833564), (1286, 1416782), (2572, 708391), (6499, 280348), (7303, 249484), (10573, 172324), (12998, 140174), (14606, 124742), (21146, 86162), (25996, 70087), (29212, 62371), (42292, 43081)]