20753538

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{211}}^1$

素因数の和:339

約数の個数: 48

約数和(自身を含む): 45624096

約数和(自身を除く): 24870558

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 97, 169, 194, 211, 291, 338, 422, 507, 582, 633, 1014, 1261, 1266, 2522, 2743, 3783, 5486, 7566, 8229, 16393, 16458, 20467, 32786, 35659, 40934, 49179, 61401, 71318, 98358, 106977, 122802, 213954, 266071, 532142, 798213, 1596426, 3458923, 6917846, 10376769, 20753538]

約数ペア:

[(1, 20753538), (2, 10376769), (3, 6917846), (6, 3458923), (13, 1596426), (26, 798213), (39, 532142), (78, 266071), (97, 213954), (169, 122802), (194, 106977), (211, 98358), (291, 71318), (338, 61401), (422, 49179), (507, 40934), (582, 35659), (633, 32786), (1014, 20467), (1261, 16458), (1266, 16393), (2522, 8229), (2743, 7566), (3783, 5486)]