28667637

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 46949760

約数和(自身を除く): 18282123

約数列:

[1, 3, 9, 19, 23, 37, 57, 69, 111, 171, 197, 207, 333, 437, 591, 703, 851, 1311, 1773, 2109, 2553, 3743, 3933, 4531, 6327, 7289, 7659, 11229, 13593, 16169, 21867, 33687, 40779, 48507, 65601, 86089, 138491, 145521, 167647, 258267, 415473, 502941, 774801, 1246419, 1508823, 3185293, 9555879, 28667637]

約数ペア:

[(1, 28667637), (3, 9555879), (9, 3185293), (19, 1508823), (23, 1246419), (37, 774801), (57, 502941), (69, 415473), (111, 258267), (171, 167647), (197, 145521), (207, 138491), (333, 86089), (437, 65601), (591, 48507), (703, 40779), (851, 33687), (1311, 21867), (1773, 16169), (2109, 13593), (2553, 11229), (3743, 7659), (3933, 7289), (4531, 6327)]