19880028

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{78889}}^1$

素因数の和:78906

約数の個数: 36

約数和(自身を含む): 57431920

約数和(自身を除く): 37551892

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 78889, 157778, 236667, 315556, 473334, 552223, 710001, 946668, 1104446, 1420002, 1656669, 2208892, 2840004, 3313338, 4970007, 6626676, 9940014, 19880028]

約数ペア:

[(1, 19880028), (2, 9940014), (3, 6626676), (4, 4970007), (6, 3313338), (7, 2840004), (9, 2208892), (12, 1656669), (14, 1420002), (18, 1104446), (21, 946668), (28, 710001), (36, 552223), (42, 473334), (63, 315556), (84, 236667), (126, 157778), (252, 78889)]