28731141

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 45826560

約数和(自身を除く): 17095419

約数列:

[1, 3, 9, 29, 31, 53, 67, 87, 93, 159, 201, 261, 279, 477, 603, 899, 1537, 1643, 1943, 2077, 2697, 3551, 4611, 4929, 5829, 6231, 8091, 10653, 13833, 14787, 17487, 18693, 31959, 47647, 60233, 102979, 110081, 142941, 180699, 308937, 330243, 428823, 542097, 926811, 990729, 3192349, 9577047, 28731141]

約数ペア:

[(1, 28731141), (3, 9577047), (9, 3192349), (29, 990729), (31, 926811), (53, 542097), (67, 428823), (87, 330243), (93, 308937), (159, 180699), (201, 142941), (261, 110081), (279, 102979), (477, 60233), (603, 47647), (899, 31959), (1537, 18693), (1643, 17487), (1943, 14787), (2077, 13833), (2697, 10653), (3551, 8091), (4611, 6231), (4929, 5829)]