28348911

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 46126080

約数和(自身を除く): 17777169

約数列:

[1, 3, 9, 17, 31, 43, 51, 93, 129, 139, 153, 279, 387, 417, 527, 731, 1251, 1333, 1581, 2193, 2363, 3999, 4309, 4743, 5977, 6579, 7089, 11997, 12927, 17931, 21267, 22661, 38781, 53793, 67983, 73253, 101609, 185287, 203949, 219759, 304827, 555861, 659277, 914481, 1667583, 3149879, 9449637, 28348911]

約数ペア:

[(1, 28348911), (3, 9449637), (9, 3149879), (17, 1667583), (31, 914481), (43, 659277), (51, 555861), (93, 304827), (129, 219759), (139, 203949), (153, 185287), (279, 101609), (387, 73253), (417, 67983), (527, 53793), (731, 38781), (1251, 22661), (1333, 21267), (1581, 17931), (2193, 12927), (2363, 11997), (3999, 7089), (4309, 6579), (4743, 5977)]