28131873

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{631}}^1$

素因数の和:845

約数の個数: 32

約数和(自身を含む): 47081472

約数和(自身を除く): 18949599

約数列:

[1, 3, 7, 11, 21, 33, 77, 193, 231, 579, 631, 1351, 1893, 2123, 4053, 4417, 6369, 6941, 13251, 14861, 20823, 44583, 48587, 121783, 145761, 365349, 852481, 1339613, 2557443, 4018839, 9377291, 28131873]

約数ペア:

[(1, 28131873), (3, 9377291), (7, 4018839), (11, 2557443), (21, 1339613), (33, 852481), (77, 365349), (193, 145761), (231, 121783), (579, 48587), (631, 44583), (1351, 20823), (1893, 14861), (2123, 13251), (4053, 6941), (4417, 6369)]